Quantum information with cold atoms and non-classical light

Recent Submissions

  • Loophole-free Bell inequality violation using electron spins separated by 1.3 kilometres 

    Hensen, B.; Bernien, H.; Dréau, A. E.; Reiserer, A.; Kalb, N.; Blok, M. S.; Ruitenberg, J.; Vermeulen, R. F. L.; Schouten, R. N.; Abellán, Carlos, 1990-; Amaya, W.; Pruneri, P.; Mitchell, Morgan W.; Markham, M.; Twitchen, D. J.; Elkouss, D.; Wehner, S.; Taminiau, Tim Hugo; Hanson, R. (Nature Publishing Group, 2015-10-21)
    Article
    Restricted access - publisher's policy
    More than 50 years ago1, John Bell proved that no theory of nature that obeys locality and realism2 can reproduce all the predictions of quantum theory: in any local-realist theory, the correlations between outcomes of ...

  • Long-term laser frequency stabilization using fiber interferometers 

    Kong, Jia; Lucivero, Vito Giovanni; Jiménez-Martínez, Ricardo; Mitchell, Morgan W. (AIP, 2015-07-09)
    Article
    Open Access
    We report long-term laser frequency stabilization using only the target laser and a pair of 5 m fiber interferometers, one as a frequency reference and the second as a sensitive thermometer to stabilize the frequency ...

  • Passive Decoy-State Quantum Key Distribution with Coherent Light 

    Curty, Marcos; Jofre Cruanyes, Marc; Pruneri, Valerio; Mitchell, Morgan W. (MDPI, 2015-06-12)
    Article
    Open Access
    Signal state preparation in quantum key distribution schemes can be realized using either an active or a passive source. Passive sources might be valuable in some scenarios; for instance, in those experimental setups ...

  • Macroscopic Quantum State Analyzed Particle by Particle 

    Beduini, Federica A.; Zielińska, Joanna Ada; Lucivero, Vito G.; Icaza Astiz, Yannick A. de; Mitchell, Morgan W. (ACS Publications, 2015-03-27)
    Article
    Open Access
    Macroscopic quantum phenomena, e.g., superconductivity and squeezing, are believed to result from entanglement of macroscopic numbers of particles. We report the first direct study of this kind of entanglement: we use ...

  • Strong experimental guarantees in ultrafast quantum random number generation 

    Mitchell, Morgan W.; Abellán, Carlos, 1990-; Amaya, Waldimar (American Physical Society, 2015-01-12)
    Article
    Open Access
    We describe a methodology and standard of proof for experimental claims of quantum random-number generation (QRNG), analogous to well-established methods from precision measurement. For appropriately constructed physical ...