Stephanie Wehner

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Stephanie Wehner(2022)

Stephanie Dorothea Christine Wehner (born 8 May 1977 in Würzburg)[1] is a German physicist and computer scientist.

She is the Roadmap Leader of the Quantum Internet and Networked Computing initiative [2] at QuTech, Delft University of Technology.[3] She is also known for introducing the noisy-storage model in quantum cryptography.[4] Wehner's research focuses mainly on quantum cryptography and quantum communications.

Wehner, together with Jonathan Oppenheim, discovered that the amount of non-locality in quantum mechanics is limited by the uncertainty principle.[5][6][7]

Education and early life[edit]

She studied at the University of Amsterdam and obtained her Ph.D. at CWI. Following this she moved to Caltech as a postdoctoral researcher (under John Preskill).[3][8]

Wehner was involved in computer security, for example kernel rootkits,[9][10] and worked as a professional hacker.[11]


From 2010 to 2014, Wehner was an assistant professor and later associate professor at the department of computer science at the National University of Singapore and a Principal Investigator at the Centre for Quantum Technologies. In 2014, she started as associate professor at QuTech, Delft University of Technology and as of 2016 she is Antoni van Leeuwenhoek professor at the Delft University of Technology.

QCRYPT conference[edit]

In 2011, Wehner and others founded the QCRYPT[12] conference series.[13] The latest conference was organised in the Shanghai International Conference Center, Shanghai.

Quantum Internet Alliance[edit]

Stephanie Wehner is the coordinator of the Quantum Internet Alliance which was awarded ten million Euros in October 2018 by the European Commission.[14] Commenting on the award, Wehner said: "This grant allows us to speed up in order to keep Europe at the front of this fascinating field of research and technology development”.


Her publications include:

  • Oppenheim, Jonathan, and Stephanie Wehner. "The uncertainty principle determines the nonlocality of quantum mechanics." Science 330.6007 (2010): 1072–1074.[5]
  • Hensen, Bas, et al. "Loophole-free Bell inequality violation using electron spins separated by 1.3 kilometres." Nature526.7575 (2015): 682.[15]


Wehner received the Ammodo Science Award in 2019.[16][17] In 2022 she was elected to the Royal Netherlands Academy of Arts and Sciences.[18]


  1. ^ S.D.C. Wehner, 1977 - at the University of Amsterdam Album Academicum website.
  2. ^ "Quantum Internet and Networked Computing Archives - QuTech". QuTech. Retrieved 2018-11-29.
  3. ^ a b "Stephanie Wehner's Webpage".
  4. ^ Wehner, S.; C. Schaffner; B. Terhal (2008). "Cryptography from noisy-storage". Physical Review Letters. 100 (22): 220502. arXiv:0711.2895. Bibcode:2008PhRvL.100v0502W. doi:10.1103/PhysRevLett.100.220502. PMID 18643410. S2CID 2974264.
  5. ^ a b Oppenheim, J.; Wehner, S. (18 November 2010). "The Uncertainty Principle Determines the Nonlocality of Quantum Mechanics". Science. 330 (6007): 1072–1074. arXiv:1004.2507. Bibcode:2010Sci...330.1072O. doi:10.1126/science.1192065. PMID 21097930. S2CID 10166642.
  6. ^ "Quantum uncertainty controls 'action at a distance'".
  7. ^ "Quantum world more ordered than thought". Archived from the original on 2012-04-03.
  8. ^ "IQI Caltech".
  9. ^ "Fun and Games with FreeBSD Kernel Modules".
  10. ^ "Atrak home page". Archived from the original on 2013-03-27.
  11. ^ Castelvecchi, Davide (2018-02-15). "The quantum internet has arrived (and it hasn't)". Nature. 554 (7692): 289–292. Bibcode:2018Natur.554..289C. doi:10.1038/d41586-018-01835-3. ISSN 0028-0836. PMID 29446394.
  12. ^ "QCrypt Charter". QCrypt 2017. Retrieved 2019-02-15.
  13. ^ "QCrypt 2018 – 8th International Conference on Quantum Cryptography, held in Shanghai, China, 27–31 August 2018". Retrieved 2018-11-29.
  14. ^ "EU awards ten million euro to European Quantum Internet Alliance to speed up development of Quantum Internet". TU Delft. Retrieved 2018-11-29.
  15. ^ Hensen, B.; Bernien, H.; Dréau, A. E.; Reiserer, A.; Kalb, N.; Blok, M. S.; Ruitenberg, J.; Vermeulen, R. F. L.; Schouten, R. N. (October 2015). "Loophole-free Bell inequality violation using electron spins separated by 1.3 kilometres". Nature. 526 (7575): 682–686. arXiv:1508.05949. Bibcode:2015Natur.526..682H. doi:10.1038/nature15759. ISSN 0028-0836. PMID 26503041. S2CID 205246446.
  16. ^ "Stephanie Wehner wins Ammodo Science Award 2019". QuTech. 2019-01-29. Retrieved 2019-02-15.
  17. ^ "Home". Ammodo Science Award. Retrieved 2019-02-15.
  18. ^ [12 May 2022 "Royal Academy selects 22 members"]. Royal Netherlands Academy of Arts and Sciences. 12 May 2022. Retrieved 2023-11-11. {{cite web}}: Check |url= value (help)