Timeline of quantum computing and communication

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This is a timeline of quantum computing.

1970s

  • 1960
  • 1973
  • 1975
    • R. P. Poplavskii publishes "Thermodynamical models of information processing" (in Russian)[1] which showed the computational infeasibility of simulating quantum systems on classical computers, due to the superposition principle.
  • 1976
    • Polish mathematical physicist Roman Stanisław Ingarden publishes a seminal paper entitled "Quantum Information Theory" in Reports on Mathematical Physics, vol. 10, 43–72, 1976. (The paper was submitted in 1975.) It is one of the first attempts at creating a quantum information theory, showing that Shannon information theory cannot directly be generalized to the quantum case, but rather that it is possible to construct a quantum information theory, which is a generalization of Shannon's theory, within the formalism of a generalized quantum mechanics of open systems and a generalized concept of observables (the so-called semi-observables).

1980s

1990s

2000s

2005

  • University of Illinois at Urbana-Champaign scientists demonstrate quantum entanglement of multiple characteristics, potentially allowing multiple qubits per particle.
  • Two teams of physicists have measured the capacitance of a Josephson junction for the first time. The methods could be used to measure the state of quantum bits in a quantum computer without disturbing the state.[21]
  • In December, the first quantum byte, or qubyte, is announced to have been created by scientists at The Institute of Quantum Optics and Quantum Information at the University of Innsbruck in Austria, with the formal paper published in the December 1 issue of Nature.
  • Harvard University and Georgia Institute of Technology researchers succeeded in transferring quantum information between "quantum memories" – from atoms to photons and back again.

2006

  • Materials Science Department of Oxford University, cage a qubit in a buckyball (a Buckminster fullerene particle), and demonstrated quantum "bang-bang" error correction.[22]
  • Researchers from the University of Illinois at Urbana-Champaign use the Zeno Effect, repeatedly measuring the properties of a photon to gradually change it without actually allowing the photon to reach the program, to search a database without actually "running" the quantum computer.[23]
  • Vlatko Vedral of the University of Leeds and colleagues at the universities of Porto and Vienna found that the photons in ordinary laser light can be quantum mechanically entangled with the vibrations of a macroscopic mirror.[24]
  • Samuel L. Braunstein at the University of York along with the University of Tokyo and the Japan Science and Technology Agency gave the first experimental demonstration of quantum telecloning.[25]
  • Professors at the University of Sheffield develop a means to efficiently produce and manipulate individual photons at high efficiency at room temperature.[26]
  • New error checking method theorized for Josephson junction computers.[27]
  • First 12 qubit quantum computer benchmarked by researchers at the Institute for Quantum Computing and the Perimeter Institute for Theoretical Physics in Waterloo, as well as MIT, Cambridge.[28]
  • Two dimensional ion trap developed for quantum computing.[29]
  • Seven atoms placed in stable line, a step on the way to constructing a quantum gate, at the University of Bonn.[30]
  • A team at Delft University of Technology in the Netherlands created a device that can manipulate the "up" or "down" spin-states of electrons on quantum dots.[31]
  • University of Arkansas develops quantum dot molecules.[32]
  • Spinning new theory on particle spin brings science closer to quantum computing.[33]
  • University of Copenhagen develops quantum teleportation between photons and atoms.[34]
  • University of Camerino scientists develop theory of macroscopic object entanglement, which has implications for the development of quantum repeaters.[35]
  • Tai-Chang Chiang, at Illinois at Urbana-Champaign, finds that quantum coherence can be maintained in mixed-material systems.[36]
  • Cristophe Boehme, University of Utah, demonstrates the feasibility of reading spin-data on a silicon-phosphorus quantum computer.[37]

2007

  • Subwavelength waveguide developed for light.[38]
  • Single photon emitter for optical fibers developed.[39]
  • Six-photon one-way quantum computer is created in lab.[40]
  • New material proposed for quantum computing.[41]
  • Single atom single photon server devised.[42]
  • First use of Deutsch's Algorithm in a cluster state quantum computer.[43]
  • University of Cambridge develops electron quantum pump.[44]
  • Superior method of qubit coupling developed.[45]
  • Successful demonstration of controllably coupled qubits.[46]
  • Breakthrough in applying spin-based electronics to silicon.[47]
  • Scientists demonstrate quantum state exchange between light and matter.[48]
  • Diamond quantum register developed.[49]
  • Controlled-NOT quantum gates on a pair of superconducting quantum bits realized.[50]
  • Scientists contain, study hundreds of individual atoms in 3D array.[51]
  • Nitrogen in buckyball used in quantum computing.[52]
  • Large number of electrons quantum coupled.[53]
  • Spin-orbit interaction of electrons measured.[54]
  • Atoms quantum manipulated in laser light.[55]
  • Light pulses used to control electron spins.[56]
  • Quantum effects demonstrated across tens of nanometers.[57]
  • Light pulses used to accelerate quantum computing development.[58]
  • Quantum RAM blueprint unveiled.[59]
  • Model of quantum transistor developed.[60]
  • Long distance entanglement demonstrated.[61]
  • Photonic quantum computing used to factor number by two independent labs.[62]
  • Quantum bus developed by two independent labs.[63]
  • Superconducting quantum cable developed.[64]
  • Transmission of qubits demonstrated.[65]
  • Superior qubit material devised.[66]
  • Single electron qubit memory.[67]
  • Bose-Einstein condensate quantum memory developed.[68]
  • D-Wave Systems claims to have a working 28-qubit quantum annealing computer, though this claim has yet to be verified.[69]
  • New cryonic method reduces decoherence and increases interaction distance, and thus quantum computing speed.[70]
  • Photonic quantum computer demonstrated.[71]
  • Graphene quantum dot spin qubits proposed.[72]

2008

  • Graphene quantum dot qubits[73]
  • Quantum bit stored[74]
  • 3D qubit-qutrit entanglement demonstrated[75]
  • Analog quantum computing devised[76]
  • Control of quantum tunneling[77]
  • Entangled memory developed[78]
  • Superior NOT gate developed[79]
  • Qutrits developed[80]
  • Quantum logic gate in optical fiber[81]
  • Superior quantum Hall Effect discovered[82]
  • Enduring spin states in quantum dots[83]
  • Molecular magnets proposed for quantum RAM[84]
  • Quasiparticles offer hope of stable quantum computer[85]
  • Image storage may have better storage of qubits[86]
  • Quantum entangled images[87]
  • Quantum state intentionally altered in molecule[88]
  • Electron position controlled in silicon circuit[89]
  • Superconducting electronic circuit pumps microwave photons[90]
  • Amplitude spectroscopy developed[91]
  • Superior quantum computer test developed[92]
  • Optical frequency comb devised[93]
  • Quantum Darwinism supported[94]
  • Hybrid qubit memory developed[95]
  • Qubit stored for over 1 second in atomic nucleus[96]
  • Faster electron spin qubit switching and reading developed[97]
  • Possible non-entanglement quantum computing[98]
  • D-Wave Systems claims to have produced a 128 qubit computer chip, though this claim has yet to be verified.[99]

2009

  • Carbon 12 purified for longer coherence times[100]
  • Lifetime of qubits extended to hundreds of milliseconds[101]
  • Quantum control of photons[102]
  • Quantum entanglement demonstrated over 240 micrometres[103]
  • Qubit lifetime extended by factor of 1000[104]
  • First electronic quantum processor created[105]
  • Six-photon graph state entanglement used to simulate the fractional statistics of anyons living in artificial spin-lattice models[106]
  • Single molecule optical transistor[107]
  • NIST reads, writes individual qubits[108]
  • NIST demonstrates multiple computing operations on qubits[109]
  • A combination of all of the fundamental elements required to perform scalable quantum computing through the use of qubits stored in the internal states of trapped atomic ions shown[110]
  • Researchers at University of Bristol demonstrate Shor's algorithm on a silicon photonic chip[111]
  • Quantum Computing with an Electron Spin Ensemble[112]
  • Scalable flux qubit demonstrated[113]
  • Photon machine gun developed for quantum computing[114]
  • Quantum algorithm developed for differential equation systems[115]
  • First universal programmable quantum computer unveiled[116]
  • Scientists electrically control quantum states of electrons[117]
  • Google collaborates with D-Wave Systems on image search technology using quantum computing[118]
  • A method for synchronizing the properties of multiple coupled CJJ rf-SQUID flux qubits with a small spread of device parameters due to fabrication variations was demonstrated[119]

2010s

2010

  • Ion trapped in optical trap[120]
  • Optical quantum computer with three qubits calculated the energy spectrum of molecular hydrogen to high precision[121]
  • First germanium laser brings us closer to 'optical computers'[122]
  • Single electron qubit developed[123]
  • Quantum state in macroscopic object[124]
  • New quantum computer cooling method developed[125]
  • Racetrack ion trap developed[126]
  • 5/2 quantum Hall liquids developed[127]
  • Quantum interface between a single photon and a single atom demonstrated[128]
  • LED quantum entanglement demonstrated[129]
  • Two photon optical chip[130]
  • Microfabricated planar ion traps[131][132]
  • Qubits manipulated electrically, not magnetically[133]

2011

  • Entanglement in a solid-state spin ensemble[134]
  • NOON photons in superconducting quantum integrated circuit[135]
  • Quantum antenna[136]
  • Multimode quantum interference[137]
  • Magnetic Resonance applied to quantum computing[138]
  • Quantum pen[139]
  • Atomic "Racing Dual"[140]
  • 14 qubit register[141]
  • D-Wave claims to have developed quantum annealing and introduces their product called D-Wave One. The company claims this is the first commercially available quantum computer[142]
  • Repetitive error correction demonstrated in a quantum processor[143]
  • Diamond quantum computer memory demonstrated[144]
  • Qmodes developed[145]
  • Decoherence suppressed[146]
  • Simplification of controlled operations[147]
  • Ions entangled using microwaves[148]
  • Practical error rates achieved[149]
  • Quantum computer employing Von Neumann architecture[150]
  • Quantum spin Hall topological insulator[151]
  • Two Diamonds Linked by Quantum Entanglement could help develop photonic processors[152]

2012

  • D-Wave claims a quantum computation using 84 qubits.[153]
  • Physicists create a working transistor from a single atom[154][155]
  • A method for manipulating the charge of nitrogen vacancy-centres in diamond[156]
  • Reported creation of a 300 qubit/particle quantum simulator.[157][158]
  • Demonstration of topologically protected qubits with an eight-photon entanglement, a robust approach to practical quantum computing [1]
  • 1QB Information Technologies (1QBit) founded. World's first dedicated quantum computing software company.[159]
  • Decoherence suppressed for 2 seconds at room temperature by manipulating Carbon-13 atoms with lasers.[160][161]
  • Theory of Bell-based randomness expansion with reduced assumption of measurement independence.[162]

2013

  • Coherent superposition of an ensemble of approximately 3 billion qubits[citation needed] for 39 minutes at room temperature, and 3 hours at cryogenic temperatures. The previous record was 2 seconds.[163]

2014

2015

  • Optically addressable nuclear spins in a solid with a six-hour coherence time.[172]
  • Quantum information encoded by simple electrical pulses.[173]
  • Quantum error detection code using a square lattice of four superconducting qubits.[174]
  • D-Wave Systems Inc. announced on 22 June that it had broken the 1000 qubit barrier.[175]
  • Two qubit silicon logic gate developed.[176]

2016

2017

  • D-Wave Systems Inc. announced on 24 January general commercial availability of the D-Wave 2000Q quantum annealer, with 2000 qubits.[178]
  • Atos sells first Quantum Learning Machine to Oak Ridge National Laboratory, supporting US Department of Energy research[179]
  • Working blueprint for a microwave trapped ion quantum computer published in Science Advances by international collaborators.[180]
  • IBM unveils 17-qubit quantum computer—and a better way of benchmarking it.[181]
  • Scientists build a microchip that generates two entangled qubits each with 10 states, for 100 dimensions total.[182]
  • Microsoft reveals an unnamed quantum programming language, integrated with Visual Studio. Programs can be executed locally on a 32-qubit simulator, or a 40-qubit simulator on Azure. [183]
  • Intel develops a 17-qubit chip.[184]
  • IBM reveals a working 50-qubit quantum computer that can maintain it's quantum state for 90 microseconds.[185]

See also

References

  1. ^ R. P. Poplavskii (1975). "Thermodynamical models of information processing" (PDF). Uspekhi Fizicheskikh Nauk (in Russian). 115 (3): 465–501. doi:10.3367/UFNr.0115.197503d.0465. Retrieved March 4, 2013.
  2. ^ Benioff, Paul (1980). "The computer as a physical system: A microscopic quantum mechanical Hamiltonian model of computers as represented by Turing machines". Journal of Statistical Physics. 22 (5): 563–591. Bibcode:1980JSP....22..563B. doi:10.1007/bf01011339.
  3. ^ Manin, Yu I (1980). Vychislimoe i nevychislimoe (Computable and Noncomputable) (in Russian). Sov.Radio. pp. 13–15. Archived from the original on May 10, 2013. Retrieved March 4, 2013. {{cite book}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  4. ^ Simulating physics with computers https://people.eecs.berkeley.edu/~christos/classics/Feynman.pdf
  5. ^ Benioff, P. (1982). "Quantum mechanical hamiltonian models of turing machines". Journal of Statistical Physics. 29 (3): 515–546. Bibcode:1982JSP....29..515B. doi:10.1007/BF01342185.
  6. ^ Wootters, W. K.; Zurek, W. H. (1982). "A single quantum cannot be cloned". Nature. 299 (5886): 802–803. Bibcode:1982Natur.299..802W. doi:10.1038/299802a0.
  7. ^ Dieks, D. (1982). "Communication by EPR devices". Physics Letters A. 92 (6): 271–272. Bibcode:1982PhLA...92..271D. doi:10.1016/0375-9601(82)90084-6.
  8. ^ Monroe, C.; Meekhof, D.M.; King, B.E.; Itano, W.M.; Wineland, D.J. (December 18, 1995). "Demonstration of a Fundamental Quantum Logic Gate" (PDF). Physical Review Letters. 75 (#25): 4714–4717. Bibcode:1995PhRvL..75.4714M. doi:10.1103/PhysRevLett.75.4714. PMID 10059979. Retrieved December 29, 2007.
  9. ^ DiVincenzo (1996). "Topics in Quantum Computers". arXiv:cond-mat/9612126. {{cite arXiv}}: |class= ignored (help)
  10. ^ D. Loss and D. P. DiVincenzo, "Quantum computation with quantum dots", Phys. Rev. A 57, p120 (1998); on arXiv.org in Jan. 1997
  11. ^ Chuang, Isaac L.; Gershenfeld, Neil; Kubinec, Mark (April 13, 1998). "Experimental Implementation of Fast Quantum Searching". Physical Review Letters. 80 (15): 3408–3411. Bibcode:1998PhRvL..80.3408C. doi:10.1103/PhysRevLett.80.3408.
  12. ^ Kane, B. E. (May 14, 1998). "A silicon-based nuclear spin quantum computer". Nature. 393 (6681): 133–137. Bibcode:1998Natur.393..133K. doi:10.1038/30156. ISSN 0028-0836.
  13. ^ Gottesman, Daniel (1998). "The Heisenberg Representation of Quantum Computers". arXiv:quant-ph/9807006v1. Bibcode:1998quant.ph..7006G. {{cite journal}}: Cite journal requires |journal= (help)
  14. ^ S. L. Braunstein, et al., "Separability of Very Noisy Mixed States and Implications for NMR Quantum Computing", Phys. Rev. Lett. 83, 1054 (1999)
  15. ^ http://prola.aps.org/abstract/PRL/v87/i4/e047901
  16. ^ R. Raussendorf; H. J. Briegel (2001). "A One-Way Quantum Computer". Physical Review Letters. 86 (22): 5188–91. Bibcode:2001PhRvL..86.5188R. doi:10.1103/PhysRevLett.86.5188. PMID 11384453. {{cite journal}}: Unknown parameter |lastauthoramp= ignored (|name-list-style= suggested) (help)
  17. ^ n.d. Institute for Quantum Computing "Quick Facts". Retrieved July 26, 2016.
  18. ^ Pittman, T. B.; Fitch, M. J.; Jacobs, B. C; Franson, J. D. (2003). "Experimental controlled-not logic gate for single photons in the coincidence basis". Phys. Rev. A. 68: 032316. arXiv:quant-ph/0303095. Bibcode:2003PhRvA..68c2316P. doi:10.1103/physreva.68.032316.
  19. ^ O'Brien, J. L.; Pryde, G. J.; White, A. G.; Ralph, T. C.; Branning, D. (2003). "Demonstration of an all-optical quantum controlled-NOT gate". Nature. 426 (6964): 264–267. arXiv:quant-ph/0403062. Bibcode:2003Natur.426..264O. doi:10.1038/nature02054. PMID 14628045.
  20. ^ Zhao, Zhi; Chen, Yu-Ao; Zhang, An-Ning; Yang, Tao; Briegel, Hans J.; Pan, Jian-Wei (2004). "Experimental demonstration of five-photon entanglement and open-destination teleportation". Nature. 430 (6995): 54–58. arXiv:quant-ph/0402096. Bibcode:2004Natur.430...54Z. doi:10.1038/nature02643. PMID 15229594.
  21. ^ Dumé, Belle (November 22, 2005). "Breakthrough for quantum measurement". PhysicsWeb. Retrieved December 29, 2007.
  22. ^ January 4, 2006 University of Oxford "Bang-bang: a step closer to quantum supercomputers". Retrieved December 29, 2007.
  23. ^ Dowling, Jonathan P. (2006). "To Compute or Not to Compute?". Nature. 439 (7079): 919–920. Bibcode:2006Natur.439..919D. doi:10.1038/439919a. PMID 16495978.
  24. ^ Belle Dumé, "Entanglement heats up," Physics World (February 23, 2007)
  25. ^ February 16, 2006 University of York "Captain Kirk's clone and the eavesdropper" (Press release). Retrieved December 29, 2007.
  26. ^ March 24, 2006 Soft Machines "The best of both worlds – organic semiconductors in inorganic nanostructures". Retrieved May 20, 2010.
  27. ^ June 8, 2010 New Scientist Tom Simonite. "Error-check breakthrough in quantum computing". Retrieved May 20, 2010.
  28. ^ May 8, 2006 ScienceDaily "12-qubits Reached In Quantum Information Quest". Retrieved May 20, 2010.
  29. ^ July 7, 2010 New Scientist Tom Simonite. "Flat 'ion trap' holds quantum computing promise". Retrieved May 20, 2010.
  30. ^ July 12, 2006 PhysOrg.com Luerweg, Frank. "Quantum Computer: Laser tweezers sort atoms". Archived from the original on December 15, 2007. Retrieved December 29, 2007. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  31. ^ August 16, 2006 New Scientist "'Electron-spin' trick boosts quantum computing". Archived from the original on November 22, 2006. Retrieved December 29, 2007. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  32. ^ August 16, 2006 NewswireToday Michael Berger. "Quantum Dot Molecules – One Step Further Towards Quantum Computing". Retrieved December 29, 2007.
  33. ^ September 7, 2006 PhysOrg.com "Spinning new theory on particle spin brings science closer to quantum computing". Archived from the original on January 17, 2008. Retrieved December 29, 2007. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  34. ^ October 4, 2006 New Scientist Zeeya Merali (2006). "Spooky steps to a quantum network". New Scientist. 192 (2572): 12. doi:10.1016/s0262-4079(06)60639-8. Retrieved December 29, 2007.
  35. ^ October 24, 2006 PhysOrg.com Lisa Zyga. "Scientists present method for entangling macroscopic objects". Archived from the original on October 13, 2007. Retrieved December 29, 2007. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  36. ^ November 2, 2006 University of Illinois at Urbana-Champaign James E. Kloeppel. "Quantum coherence possible in incommensurate electronic systems". Retrieved August 19, 2010.
  37. ^ November 19, 2006 PhysOrg.com "A Quantum (Computer) Step: Study Shows It's Feasible to Read Data Stored as Nuclear 'Spins'". Archived from the original on September 29, 2007. Retrieved December 29, 2007. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  38. ^ January 8, 2007 New Scientist Jeff Hecht. "Nanoscopic 'coaxial cable' transmits light". Retrieved December 30, 2007.
  39. ^ February 21, 2007 The Engineer "Toshiba unveils quantum security". Retrieved December 30, 2007.
  40. ^ January 14, 2007 Nature Physics Chao-Yang Lu; et al. "Experimental entanglement of six photons in graph states". Retrieved January 14, 2007.
  41. ^ March 15, 2007 New Scientist Zeeya Merali. "The universe is a string-net liquid". Retrieved December 30, 2007.
  42. ^ March 12, 2007 Max Planck Society "A Single-Photon Server with Just One Atom" (Press release). Retrieved December 30, 2007.
  43. ^ April 18, 2007 PhysOrg.com Miranda Marquit. "First use of Deutsch's Algorithm in a cluster state quantum computer". Archived from the original on January 17, 2008. Retrieved December 30, 2007. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  44. ^ April 19, 2007 Electronics Weekly Steve Bush. "Cambridge team closer to working quantum computer". Retrieved December 30, 2007.[permanent dead link]
  45. ^ May 7, 2007 Wired Cyrus Farivar (May 7, 2007). "It's the "Wiring" That's Tricky in Quantum Computing". Wired. Archived from the original on July 6, 2008. Retrieved December 30, 2007. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  46. ^ May 8, 2007 Media-Newswire.com "NEC, JST, and RIKEN Successfully Demonstrate World's First Controllably Coupled Qubits" (Press release). Retrieved December 30, 2007.
  47. ^ May 16, 2007 Scientific American JR Minkel. "Spintronics Breaks the Silicon Barrier". Retrieved December 30, 2007.
  48. ^ May 22, 2007 PhysOrg.com Lisa Zyga. "Scientists demonstrate quantum state exchange between light and matter". Archived from the original on March 7, 2008. Retrieved December 30, 2007. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  49. ^ June 1, 2007 Science Dutt, M. V. G. (2007). "Quantum Register Based on Individual Electronic and Nuclear Spin Qubits in Diamond". Science. 316 (5829): 1312–6. Bibcode:2007Sci...316.....D. doi:10.1126/science.1139831. PMID 17540898.
  50. ^ June 14, 2007 Nature Plantenberg, J. H.; De Groot, P. C.; Harmans, C. J. P. M.; Mooij, J. E. (2007). "Demonstration of controlled-NOT quantum gates on a pair of superconducting quantum bits". Nature. 447 (7146): 836–839. Bibcode:2007Natur.447..836P. doi:10.1038/nature05896. PMID 17568742.
  51. ^ June 17, 2007 New Scientist Mason Inman. "Atom trap is a step towards a quantum computer". Retrieved December 30, 2007.
  52. ^ June 29, 2007 Nanowerk.com "Can nuclear qubits point the way?". Retrieved December 30, 2007.
  53. ^ July 27, 2007 ScienceDaily "Discovery Of 'Hidden' Quantum Order Improves Prospects For Quantum Super Computers". Retrieved December 30, 2007.
  54. ^ July 23, 2007 PhysOrg.com Miranda Marquit. "Indium arsenide may provide clues to quantum information processing". Archived from the original on September 26, 2007. Retrieved December 30, 2007. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  55. ^ July 25, 2007 National Institute of Standards and Technology "Thousands of Atoms Swap 'Spins' with Partners in Quantum Square Dance". Archived from the original on December 18, 2007. Retrieved December 30, 2007. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  56. ^ August 15, 2007 PhysOrg.com Lisa Zyga. "Ultrafast quantum computer uses optically controlled electrons". Archived from the original on January 2, 2008. Retrieved December 30, 2007. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  57. ^ August 15, 2007 Electronics Weekly Steve Bush. "Research points way to qubits on standard chips". Retrieved December 30, 2007.
  58. ^ August 17, 2007 ScienceDaily "Computing Breakthrough Could Elevate Security To Unprecedented Levels". Retrieved December 30, 2007.
  59. ^ August 21, 2007 New Scientist Stephen Battersby. "Blueprints drawn up for quantum computer RAM". Retrieved December 30, 2007.
  60. ^ August 26, 2007 PhysOrg.com "Photon-transistors for the supercomputers of the future". Archived from the original on January 1, 2008. Retrieved December 30, 2007. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  61. ^ September 5, 2007 University of Michigan "Physicists establish "spooky" quantum communication". Archived from the original on December 28, 2007. Retrieved December 30, 2007. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  62. ^ September 13, 2007 huliq.com "Qubits poised to reveal our secrets". Retrieved December 30, 2007.
  63. ^ September 26, 2007 New Scientist Saswato Das. "Quantum chip rides on superconducting bus". Retrieved December 30, 2007.
  64. ^ September 27, 2007 ScienceDaily "Superconducting Quantum Computing Cable Created". Retrieved December 30, 2007.
  65. ^ October 11, 2007 Electronics Weekly Steve Bush. "Qubit transmission signals quantum computing advance". Archived from the original on October 12, 2007. Retrieved December 30, 2007. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  66. ^ October 8, 2007 TG Daily Rick C. Hodgin. "New material breakthrough brings quantum computers one step closer". Archived from the original on December 12, 2007. Retrieved December 30, 2007. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  67. ^ October 19, 2007 Optics.org "Single electron-spin memory with a semiconductor quantum dot". Retrieved December 30, 2007.
  68. ^ November 7, 2007 New Scientist Stephen Battersby. "'Light trap' is a step towards quantum memory". Retrieved December 30, 2007.
  69. ^ November 12, 2007 Nanowerk.com "World's First 28 qubit Quantum Computer Demonstrated Online at Supercomputing 2007 Conference". Retrieved December 30, 2007.
  70. ^ December 12, 2007 PhysOrg.com "Desktop device generates and traps rare ultracold molecules". Archived from the original on December 15, 2007. Retrieved December 31, 2007. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  71. ^ December 19, 2007 University of Toronto Kim Luke. "U of T scientists make quantum computing leap Research is step toward building first quantum computers". Archived from the original on December 28, 2007. Retrieved December 31, 2007. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  72. ^ February 18, 2007 www.nature.com (journal) Trauzettel, Björn; Bulaev, Denis V.; Loss, Daniel; Burkard, Guido (2007). "Spin qubits in graphene quantum dots". Nature Physics. 3 (3): 192–196. arXiv:cond-mat/0611252. Bibcode:2007NatPh...3..192T. doi:10.1038/nphys544.
  73. ^ January 15, 2008 Miranda Marquit. "Graphene quantum dot may solve some quantum computing problems". Archived from the original on January 17, 2008. Retrieved January 16, 2008. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  74. ^ January 25, 2008 EETimes Europe. "Scientists succeed in storing quantum bit". Retrieved February 5, 2008.
  75. ^ February 26, 2008 Lisa Zyga. "Physicists demonstrate qubit-qutrit entanglement". Archived from the original on February 29, 2008. Retrieved February 27, 2008. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  76. ^ February 26, 2008 ScienceDaily. "Analog logic for quantum computing". Retrieved February 27, 2008.
  77. ^ March 5, 2008 Zenaida Gonzalez Kotala. "Future 'quantum computers' will offer increased efficiency... and risks". Retrieved March 5, 2008.
  78. ^ March 6, 2008 Ray Kurzweil. "Entangled memory is a first". Retrieved March 8, 2008.
  79. ^ March 27, 2008 Joann Fryer. "Silicon chips for optical quantum technologies". Retrieved March 29, 2008.
  80. ^ April 7, 2008 Ray Kurzweil. "Qutrit breakthrough brings quantum computers closer". Retrieved April 7, 2008.
  81. ^ April 15, 2008 Kate Greene. "Toward a quantum internet". Retrieved April 16, 2008.
  82. ^ April 24, 2008 Princeton University. "Scientists discover exotic quantum state of matter". Archived from the original on April 30, 2008. Retrieved April 29, 2008. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  83. ^ May 23, 2008 Belle Dumé. "Spin states endure in quantum dot". Retrieved June 3, 2008.
  84. ^ May 27, 2008 Chris Lee. "Molecular magnets in soap bubbles could lead to quantum RAM". Retrieved June 3, 2008.
  85. ^ June 2, 2008 Weizmann Institute of Science. "Scientists find new 'quasiparticles'". Retrieved June 3, 2008.
  86. ^ June 23, 2008 Lisa Zyga. "Physicists Store Images in Vapor". Archived from the original on September 15, 2008. Retrieved June 26, 2008. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  87. ^ June 25, 2008 Physorg.com. "Physicists Produce Quantum-Entangled Images". Archived from the original on August 29, 2008. Retrieved June 26, 2008. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  88. ^ June 26, 2008 Steve Tally. "Quantum computing breakthrough arises from unknown molecule". Retrieved June 28, 2008.
  89. ^ July 17, 2008 Lauren Rugani. "Quantum Leap". Retrieved July 17, 2008.
  90. ^ August 5, 2008 Science Daily. "Breakthrough In Quantum Mechanics: Superconducting Electronic Circuit Pumps Microwave Photons". Retrieved August 6, 2008.
  91. ^ September 3, 2008 Physorg.com. "New probe could aid quantum computing". Archived from the original on September 5, 2008. Retrieved September 6, 2008. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  92. ^ September 25, 2008 ScienceDaily. "Novel Process Promises To Kick-start Quantum Technology Sector". Retrieved October 16, 2008.
  93. ^ September 22, 2008 Jeremy L. O’Brien. "Quantum computing over the rainbow". Retrieved October 16, 2008.
  94. ^ October 20, 2008 Science Blog. "Relationships Between Quantum Dots – Stability and Reproduction". Archived from the original on October 22, 2008. Retrieved October 20, 2008. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  95. ^ October 22, 2008 Steven Schultz. "Memoirs of a qubit: Hybrid memory solves key problem for quantum computing". Retrieved October 23, 2008.
  96. ^ October 23, 2008 National Science Foundation. "World's Smallest Storage Space ... the Nucleus of an Atom". Retrieved October 27, 2008.
  97. ^ November 20, 2008 Dan Stober. "Stanford: Quantum computing spins closer". Retrieved November 22, 2008.
  98. ^ December 5, 2008 Miranda Marquit. "Quantum computing: Entanglement may not be necessary". Archived from the original on December 8, 2008. Retrieved December 9, 2008. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  99. ^ December 19, 2008 Next Big Future. "Dwave System's 128 qubit chip has been made". Retrieved December 20, 2008.
  100. ^ April 7, 2009 Next Big Future. "Three Times Higher Carbon 12 Purity for Synthetic Diamond Enables Better Quantum Computing". Retrieved May 19, 2009.
  101. ^ April 23, 2009 Kate Greene. "Extending the Life of Quantum Bits". Retrieved April 23, 2009.
  102. ^ May 29, 2009 physorg.com. "Researchers make breakthrough in the quantum control of light". Retrieved May 30, 2009.[permanent dead link]
  103. ^ June 3, 2009 physorg.com. "Physicists demonstrate quantum entanglement in mechanical system". Retrieved June 13, 2009.[permanent dead link]
  104. ^ June 24, 2009 Nicole Casal Moore. "Lasers can lengthen quantum bit memory by 1,000 times". Retrieved June 27, 2009.
  105. ^ June 29, 2009 www.sciencedaily.com. "First Electronic Quantum Processor Created". Retrieved June 29, 2009.
  106. ^ Chao-Yang Lu; Wei-Bo Gao; Otfried Gühne; Xiao-Qi Zhou; Zeng-Bing Chen; Jian-Wei Pan (2009). "Demonstrating Anyonic Fractional Statistics with a Six-Qubit Quantum Simulator". Physical Review Letters. 102 (3): 030502. arXiv:0710.0278. Bibcode:2009PhRvL.102c0502L. doi:10.1103/PhysRevLett.102.030502. PMID 19257336. {{cite journal}}: Unknown parameter |last-author-amp= ignored (|name-list-style= suggested) (help)
  107. ^ July 6, 2009 Dario Borghino. "Quantum computer closer: Optical transistor made from single molecule". Retrieved July 8, 2009.
  108. ^ July 8, 2009 R. Colin Johnson. "NIST advances quantum computing". Retrieved July 9, 2009.
  109. ^ August 7, 2009 Kate Greene. "Scaling Up a Quantum Computer". Retrieved August 8, 2009.
  110. ^ September 4, 2009 Jonathan P. Home; David Hanneke; John D. Jost; Jason M. Amini; Dietrich Leibfried; David J. Wineland. "Complete Methods Set for Scalable Ion Trap Quantum Information Processing". arXiv:0907.1865. Bibcode:2009Sci...325.1227H. doi:10.1126/science.1177077. Retrieved September 5, 2009. {{cite journal}}: Cite journal requires |journal= (help)
  111. ^ September 4, 2009 "Shor's Quantum Factoring Algorithm on a Photonic Chip". Science. 325: 1221. arXiv:0911.1242. Bibcode:2009Sci...325.1221P. doi:10.1126/science.1173731. Retrieved September 5, 2009. {{cite journal}}: Cite uses deprecated parameter |authors= (help)
  112. ^ August 11, 2009 J. H. Wesenberg; A. Ardavan; G. A. D. Briggs; J. J. L. Morton; R. J. Schoelkopf; D. I. Schuster; K. Mølmer. "Quantum Computing with an Electron Spin Ensemble". Retrieved September 10, 2009. {{cite news}}: Unknown parameter |last-author-amp= ignored (|name-list-style= suggested) (help)
  113. ^ September 23, 2009 Geordie. "Experimental Demonstration of a Robust and Scalable Flux Qubit". Retrieved September 24, 2009.
  114. ^ September 25, 2009 Colin Barras. "Photon 'machine gun' could power quantum computers". Retrieved September 26, 2009.
  115. ^ October 9, 2009 Larry Hardesty. "Quantum computing may actually be useful". Retrieved October 10, 2009.
  116. ^ November 15, 2009 New Scientist. "First universal programmable quantum computer unveiled". Retrieved November 16, 2009.
  117. ^ November 20, 2009 ScienceBlog. "UCSB physicists move 1 step closer to quantum computing". Archived from the original on November 23, 2009. Retrieved November 23, 2009. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  118. ^ December 11, 2009 Jeremy Hsu. "Google Demonstrates Quantum Algorithm Promising Superfast Search". Retrieved December 14, 2009.
  119. ^ December 21, 2009 R. Harris; et al. "Synchronization of multiple coupled rf-SQUID flux qubits" (PDF). Retrieved December 23, 2009.
  120. ^ January 20, 2010 arXiv blog. "Making Light of Ion Traps". Retrieved January 21, 2010.
  121. ^ January 28, 2010 Charles Petit (January 28, 2010). "Quantum Computer Simulates Hydrogen Molecule Just Right". Wired. Retrieved February 5, 2010.
  122. ^ February 4, 2010 Larry Hardesty. "First germanium laser brings us closer to 'optical computers'". Archived from the original on December 24, 2011. Retrieved February 4, 2010. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  123. ^ February 6, 2010 Science Daily. "Quantum Computing Leap Forward: Altering a Lone Electron Without Disturbing Its Neighbors". Retrieved February 6, 2010.
  124. ^ March 18, 2010 Jason Palmer (March 17, 2010). "Team's quantum object is biggest by factor of billions". BBC News. Retrieved March 20, 2010.
  125. ^ University of Cambridge. "Cambridge discovery could pave the way for quantum computing". Retrieved March 20, 2010.[dead link]
  126. ^ April 1, 2010 ScienceDaily. "Racetrack Ion Trap Is a Contender in Quantum Computing Quest". Retrieved April 3, 2010.
  127. ^ April 21, 2010 Jade Boyd. "Bizarre matter could find use in quantum computers". Retrieved April 22, 2010.
  128. ^ May 27, 2010 E. Vetsch; et al. "German physicists develop a quantum interface between light and atoms". Archived from the original on December 19, 2011. Retrieved April 22, 2010. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  129. ^ June 3, 2010 Asavin Wattanajantra. "New form of LED brings quantum computing closer". Retrieved June 5, 2010.
  130. ^ September 17, 2010 Kurzweil accelerating intelligence. "Two-photon optical chip enables more complex quantum computing". Retrieved September 17, 2010.
  131. ^ "Toward a Useful Quantum Computer: Researchers Design and test Microfabricated Planar Ion Traps". ScienceDaily. May 28, 2010. Retrieved September 20, 2010.
  132. ^ "Quantum Future: Designing and Testing Microfabricated Planar Ion Traps". Georgia Tech Research Institute. Retrieved September 20, 2010.
  133. ^ December 23, 2010 TU Delft. "TU scientists in Nature: Better control of building blocks for quantum computer". Archived from the original on December 24, 2010. Retrieved December 26, 2010. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  134. ^ February 3, 2011 "Entanglement in a solid-state spin ensemble". 470. Retrieved February 3, 2011. {{cite journal}}: Cite journal requires |journal= (help); Cite uses deprecated parameter |authors= (help)
  135. ^ February 14, 2011 UC Santa Barbara Office of Public Affairs. "International Team of Scientists Says It's High 'Noon' for Microwave Photons". Retrieved February 16, 2011.
  136. ^ February 24, 2011 Kurzeil Accelerating Intelligence. "'Quantum antennas' enable exchange of quantum information between two memory cells". Retrieved February 24, 2011.
  137. ^ March 1, 2011 "Multimode quantum interference of photons in multiport integrated devices". Retrieved March 7, 2011. {{cite news}}: Cite uses deprecated parameter |authors= (help)
  138. ^ March 7, 2011 KFC. "New Magnetic Resonance Technique Could Revolutionise Quantum Computing". Retrieved March 8, 2011.
  139. ^ March 17, 2011 Christof Weitenberg; Manuel Endres; Jacob F. Sherson; Marc Cheneau; Peter Schauß; Takeshi Fukuhara; Immanuel Bloch; Stefan Kuhr. "A Quantum Pen for Single Atoms". Archived from the original on March 18, 2011. Retrieved March 19, 2011. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help); Unknown parameter |last-author-amp= ignored (|name-list-style= suggested) (help)
  140. ^ March 21, 2011 Cordisnews. "German research brings us one step closer to quantum computing". Retrieved March 22, 2011.
  141. ^ "14-Qubit Entanglement: Creation and Coherence". Physical Review Letters. 106 (13): 130506. 2011. arXiv:1009.6126. Bibcode:2011PhRvL.106m0506M. doi:10.1103/PhysRevLett.106.130506. PMID 21517367. {{cite journal}}: Cite uses deprecated parameter |authors= (help)
  142. ^ May 12, 2011 Physicsworld.com. "Quantum-computing firm opens the box". Retrieved May 17, 2011.
  143. ^ Physorg.com (May 26, 2011). "Repetitive error correction demonstrated in a quantum processor". physorg.com. Archived from the original on January 7, 2012. Retrieved May 26, 2011. {{cite news}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  144. ^ June 27, 2011 UC Santa Barbara. "International Team Demonstrates Subatomic Quantum Memory in Diamond". Retrieved June 29, 2011.
  145. ^ July 15, 2011 Nanowerk News. "Quantum computing breakthrough in the creation of massive numbers of entangled qubits". Retrieved July 18, 2011.
  146. ^ July 20, 2011 Nanowerk News. "Scientists take the next major step toward quantum computing". Retrieved July 20, 2011.
  147. ^ August 2, 2011 nanowerk. "Dramatic simplification paves the way for building a quantum computer". Retrieved August 3, 2011.
  148. ^ August 11, 2011 "Microwave quantum logic gates for trapped ions". 476. Retrieved August 27, 2011. {{cite journal}}: Cite journal requires |journal= (help); Cite uses deprecated parameter |authors= (help)
  149. ^ August 30, 2011 Laura Ost. "NIST Achieves Record-Low Error Rate for Quantum Information Processing with One Qubit". Retrieved September 3, 2011.
  150. ^ September 1, 2011 Matteo Mariantoni (2011). "Implementing the Quantum von Neumann Architecture with Superconducting Circuits". Science. 334 (6052): 61–65. arXiv:1109.3743. Bibcode:2011Sci...334...61M. doi:10.1126/science.1208517. PMID 21885732.
  151. ^ October 4, 2011 David Ruth; Jade Boyd. "Rice physicists move one step closer to quantum computer". Retrieved October 11, 2011.
  152. ^ December 2, 2011 Clara Moskowitz; Ian Walmsley; Michael Sprague. "Two Diamonds Linked by Strange Quantum Entanglement". Retrieved December 2, 2011.
  153. ^ Zhengbing Bian; Fabian Chudak; William G. Macready; Lane Clark; Frank Gaitan (2012). "Experimental determination of Ramsey numbers with quantum annealing". Physical Review Letters. 111 (13): 130505. arXiv:1201.1842. Bibcode:2013PhRvL.111m0505B. doi:10.1103/PhysRevLett.111.130505. PMID 24116761.
  154. ^ "A single-atom transistor". Nature Nanotechnology. 7 (4): 242–246. February 19, 2012. Bibcode:2012NatNa...7..242F. doi:10.1038/nnano.2012.21. PMID 22343383. Retrieved February 9, 2015. {{cite journal}}: Cite uses deprecated parameter |authors= (help)
  155. ^ John Markoff (February 19, 2012). "Physicists Create a Working Transistor From a Single Atom". The New York Times. Retrieved February 19, 2012.
  156. ^ "Charge state manipulation of qubits in diamond". Nature Communications. Vol. 3. March 6, 2012. Retrieved March 10, 2012. {{cite news}}: Cite uses deprecated parameter |authors= (help)
  157. ^ "Engineered two-dimensional Ising interactions in a trapped-ion quantum simulator with hundreds of spins". Nature. 484 (7395): 489–492. April 26, 2012. arXiv:1204.5789. Bibcode:2012Natur.484..489B. doi:10.1038/nature10981. PMID 22538611. Retrieved February 9, 2015. {{cite journal}}: Cite uses deprecated parameter |authors= (help)
  158. ^ Lucy Sherriff. "300 atom quantum simulator smashes qubit record". Retrieved February 9, 2015.
  159. ^ 1QBit. "1QBit Website".{{cite news}}: CS1 maint: numeric names: authors list (link)
  160. ^ Peter Maurer; G. Kucsko; C. Latta; L. Jiang; N. Y. Yao; S. D. Bennett; F. Pastawski; D. Hunger; N. Chisholm; M. Markham; D. J. Twitchen; J. I. Cirac; M. D. Lukin (June 8, 2012). "Room-Temperature Quantum Bit Memory Exceeding One Second". Science. 336 (6086): 1283–1286. Bibcode:2012Sci...336.1283M. doi:10.1126/science.1220513. PMID 22679092. Retrieved February 9, 2015. {{cite journal}}: Unknown parameter |last-author-amp= ignored (|name-list-style= suggested) (help)
  161. ^ Peckham, Matt (July 6, 2012). "Quantum Computing at Room Temperature - Now a Reality". Magazine/Periodical. Time Magazine (Techland) Time Inc. p. 1. Retrieved August 5, 2012.
  162. ^ "Effects of Reduced Measurement Independence on Bell-Based Randomness Expansion". Phys. Rev. Lett. Vol. 109. October 18, 2012. Archived from the original on November 13, 2013. Retrieved November 13, 2013. {{cite news}}: Cite uses deprecated parameter |authors= (help); Unknown parameter |dead-url= ignored (|url-status= suggested) (help)
  163. ^ Kastrenakes, Jacob (November 14, 2013). "Researchers smash through quantum computer storage record". Webzine. The Verge. Retrieved November 20, 2013.
  164. ^ Penetrating Hard Targets project
  165. ^ NSA seeks to develop quantum computer to crack nearly every kind of encryption -- KurzweilAI.net January 3, 2014
  166. ^ NSA seeks to build quantum computer that could crack most types of encryption -- Washington Post
  167. ^ The NSA Is Building a Computer to Crack Almost Any Code - Time.com
  168. ^ Markoff, John (May 29, 2014). "Scientists Report Finding Reliable Way to Teleport Data". New York Times. Retrieved May 29, 2014.
  169. ^ Pfaff, W.; et al. (May 29, 2014). "Unconditional quantum teleportation between distant solid-state quantum bits". Science. 345 (6196): 532–535. arXiv:1404.4369. Bibcode:2014Sci...345..532P. doi:10.1126/science.1253512. PMID 25082696. Retrieved May 29, 2014.
  170. ^ 28 November 2014 "New largest number factored on a quantum device is 56,153". Retrieved January 7, 2015.
  171. ^ 2 December 2014 "The Mathematical Trick That Helped Smash The Record For The Largest Number Ever Factorised By A Quantum Computer: 56153 = 233 x 241". Retrieved January 7, 2015.
  172. ^ January 7, 2015 Nature (journal) "Optically addressable nuclear spins in a solid with a six-hour coherence time". 517. Retrieved January 7, 2015. {{cite journal}}: Cite journal requires |journal= (help)
  173. ^ April 13, 2015 "Breakthrough opens door to affordable quantum computers". Retrieved April 16, 2015.
  174. ^ April 29, 2015 "Demonstration of a quantum error detection code using a square lattice of four superconducting qubits". Retrieved May 1, 2015.
  175. ^ June 22, 2015 "D-Wave Systems Inc., the world's first quantum computing company, today announced that it has broken the 1000 qubit barrier". Retrieved June 22, 2015.
  176. ^ October 6, 2015 "Crucial hurdle overcome in quantum computing". Retrieved October 6, 2015.
  177. ^ "Scalable Quantum Simulation of Molecular Energies, P. J. J. O'Malley et al. Phys. Rev. X 6, 031007". July 18, 2016. Retrieved August 15, 2016.
  178. ^ "D-Wave Announces D-Wave 2000Q Quantum Computer and First System Order | D-Wave Systems". www.dwavesys.com. Retrieved January 26, 2017.
  179. ^ "Oak Ridge National Laboratory acquires Atos Quantum Learning Machine to support US Department of Energy research". Atos. Retrieved November 13, 2017.
  180. ^ "Blueprint for a microwave trapped ion quantum computer | Science Advances". Science Advances. ISSN 2375-2548. Retrieved February 25, 2017.
  181. ^ "IBM Builds Its Most Powerful Universal Quantum Computing Processors". IBM News room.
  182. ^ "Qudits: The Real Future of Quantum Computing?". IEEE Spectrum. Retrieved June 29, 2017.
  183. ^ "Microsoft makes play for next wave of computing with quantum computing toolkit". arstechnica.com. Retrieved October 5, 2017.
  184. ^ "Intel Delivers 17-Qubit Superconducting Chip with Advanced Packaging to QuTech". Intel Newsroom. Retrieved October 23, 2017.
  185. ^ "IBM Raises the Bar with a 50-Qubit Quantum Computer". MIT Technology Review. Retrieved December 13, 2017.