Now showing items 1-4 of 4

    • A comprehensive characterisation of polarization-entangled photon pairs generated in a double-pass configuration 

      Abellán, Carlos, 1990- (Universitat Politècnica de Catalunya, 2014-07-18)
      Master thesis
      Open Access
      [ANGLÈS] We have investigated a highly efficient source of polarization-entangled photons for long-distance free-space communication and other experiments involving significant propagation loss. The source is an evolution ...
    • 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, T. H.; 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 ...
    • Quantum random number generation based on vacuum field fluctuations 

      Abellán, Carlos, 1990- (Universitat Politècnica de Catalunya, 2013-09-09)
      Master thesis (pre-Bologna period)
      Open Access
      [ANGLÈS] Random numbers are extensively used in a broad range of applications. Nevertheless, there are two main markets from a commercial point of view: (i) secure communications and (ii) stochastic simulation. According ...
    • 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 ...