Quantum bus

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A quantum bus is a device which can be used to store or transfer information between independent qubits in a quantum computer, or combine two qubits into a superposition. The concept was first demonstrated by researchers at Yale University and the National Institute of Standards and Technology (NIST) in 2007.[1][2][3] Prior to this experimental demonstration, the quantum bus had been described by scientists at NIST as one of the possible cornerstone building blocks in quantum computer architecture.[4]


  1. ^ J. Majer; J. M. Chow; J. M. Gambetta; Jens Koch; B. R. Johnson; J. A. Schreier; L. Frunzio; D. I. Schuster; A. A. Houck; A. Wallraff; A. Blais; M. H. Devoret; S. M. Girvin; R. J. Schoelkopf (2007-09-27). "Coupling superconducting qubits via a cavity bus". Nature. 449 (7161): 443–447. arXiv:0709.2135Freely accessible. Bibcode:2007Natur.449..443M. doi:10.1038/nature06184. PMID 17898763. 
  2. ^ M. A. Sillanpää; J. I. Park; R. W. Simmonds (2007-09-27). "Coherent quantum state storage and transfer between two phase qubits via a resonant cavity". Nature. 449 (7161): 438–42. arXiv:0709.2341Freely accessible. Bibcode:2007Natur.449..438S. doi:10.1038/nature06124. PMID 17898762. 
  3. ^ "All Aboard the Quantum 'Bus'". 2007-09-27. Retrieved 2008-12-12. 
  4. ^ G.K. Brennen; D. Song; C.J. Williams (2003). "Quantum-computer architecture using nonlocal interactions". Physical Review A. 67 (5): 050302. arXiv:quant-ph/0301012Freely accessible. Bibcode:2003PhRvA..67e0302B. doi:10.1103/PhysRevA.67.050302.