Esther Hänggi

I am a lecturer and researcher at Lucerne University of Applied Sciences and Arts. Here is a link to my professional homepage and my Linkedin profile.
Before my current position, I was a security engineer at Ergon Airlock and a security analyst at cnlab security ag.
Even earlier, I was a research fellow in Stephanie Wehner's group at the Center for Quantum Technologies in Singapore and a doctoral student in Stefan Wolf's group at ETH Zurich, working in the area of quantum information and cryptography.
Some of my academic publications are listed below.

  • Secure bit commitment from relativistic constraints,
    with Jędrzej Kaniewski, Marco Tomamichel, and Stephanie Wehner,
    Information Theory, IEEE Transactions on Vol. 59 , Issue: 7 , 2013.
    Presented at QCRYPT 2012, 2012.
    Available at arXiv:1206.1740.
  • A violation of the uncertainty principle implies a violation of the second law of thermodynamics,
    with Stephanie Wehner,
    Nature Communications 4, 1670, 2013.
    See here for an article in the New Scientist on this.
    Available at arXiv:1205.6894.
  • The link between entropic uncertainty and nonlocality,
    with Marco Tomamichel,
    J. Phys. A: Math. Theor. 46 055301, 2013.
    Presented at QIP 2012, 2011. The video of the talk is available here.
    Available at arXiv:1108.5349.
  • The impossibility of non-signaling privacy amplification,
    with Renato Renner, and Stefan Wolf,
    Theor. Comput. Sci. Vol. 46, 2013.
    Available at arXiv:0906.4760.
  • Towards the impossibility of non-signalling privacy amplification from time-like ordering constraints,
    with Rotem Arnon Friedman, and Amnon Ta-Shma,
    arXiv preprint, 2012.
    Available at arXiv:1205.3736.
  • Non-locality is transitive,
    with Sandro Coretti, and Stefan Wolf,
    Phys. Rev. Lett. 107 100402, 2011.
    See here for an article on this result on the CQT homepage.
    Available at arXiv:1102.5685.
  • Tight bounds for classical and quantum coin flipping,
    with Jürg Wullschleger,
    Proceedings of Theory of Cryptography Conference (TCC), 2011.
    Available at arXiv:1009.4741.
  • Device-independent quantum key distribution,
    Doctoral thesis, ETH Zurich, 2010.
    This thesis received the ETH medal for an outstanding doctoral thesis.
    Available at arXiv:1012.3878.
  • Device-independent quantum key distribution with commuting measurements,
    with Renato Renner,
    arXiv preprint, 2010.
    See here for a talk about this result at Perimeter Institute.
    Available at arXiv:1009.1833.
  • The non-locality of n noisy Popescu-Rohrlich boxes,
    with Matthias Fitzi, Valerio Scarani, and Stefan Wolf,
    J. Phys. A: Math. Theor. 43 465305, 2010.
    Highlights of 2010 Collection.
    Presented at Quantum Communication, Measurement and Computing (QCMC 2008), 2008
    Available at arXiv:0811.1649.
  • Efficient device-independent quantum key distribution,
    with Renato Renner, and Stefan Wolf,
    Proceedings of Advances in Cryptology - EUROCRYPT, 2010. pdf
    Also available at arXiv:0911.4171, under the title 'Quantum cryptography based solely on Bell's theorem'.
  • Classical, quantum and non-signalling resources in bipartite games,
    with Gilles Brassard, Anne Broadbent, André Méthot, and Stefan Wolf,
    Proceedings of the Second International Conference on Quantum, Nano and Micro Technologies (ICQNM 2008), 2008.
  • Neutrino masses in grand unified theories,
    Master Thesis, EPF Lausanne, 2005.