Search Results - "Masanes, Ll"

Security of Device-Independent Quantum Key Distribution in the Bounded-Quantum-Storage Model by Pironio, S., Masanes, Ll, Leverrier, A., Acín, A.

“…Device-independent quantum key distribution (DIQKD) is a formalism that supersedes traditional quantum key distribution, as its security does not rely on any…”
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Publisher’s Note: Security of Device-Independent Quantum Key Distribution in the Bounded-Quantum-Storage Model [Phys. Rev. X 3, 031007 (2013)] by Pironio, S., Masanes, Ll, Leverrier, A., Acín, A.

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Quantum Chernoff bound as a measure of distinguishability between density matrices: Application to qubit and Gaussian states by Calsamiglia, J., Muñoz-Tapia, R., Masanes, Ll, Acin, A., Bagan, E.

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Discriminating States: the quantum Chernoff bound by Audenaert, K M R, Calsamiglia, J, Muñoz-Tapia, R, Bagan, E, Masanes, Ll, Acin, A, Verstraete, F

“…We consider the problem of discriminating two different quantum states in the setting of asymptotically many copies, and determine the minimal probability of…”
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Unified framework for correlations in terms of local quantum observables by Acín, A, Augusiak, R, Cavalcanti, D, Hadley, C, Korbicz, J K, Lewenstein, M, Masanes, Ll, Piani, M

“…We provide a unified framework for nonsignalling quantum and classical multipartite correlations, allowing all to be written as the trace of some local…”
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Multiple-copy two-state discrimination with individual measurements by Acín, A., Bagan, E., Baig, M., Masanes, Ll, Muñoz-Tapia, R.

“…We address the problem of nonorthogonal two-state discrimination when multiple copies of the unknown state are available. We give the optimal strategy when…”
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General properties of nonsignaling theories by Masanes, Ll, Acin, A., Gisin, N.

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Multipartite bound information exists and can be activated by Acín, A, Cirac, J I, Masanes, Ll

“…We prove the conjectured existence of bound information, a classical analog of bound entanglement, in the multipartite scenario. We give examples of tripartite…”
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Asymptotic violation of Bell inequalities and distillability by Masanes, Ll

“…Phys. Rev. Lett. 97, 050503 (2006) A multipartite quantum state violates a Bell inequality asymptotically if, after jointly processing by general local…”
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Extremal quantum correlations for N parties with two dichotomic observables per site by Masanes, Ll

“…Consider a scenario where $N$ separated quantum systems are measured, each with one among two possible dichotomic observables. Assume that the $N$ events…”
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Useful entanglement can be extracted from all nonseparable states by Masanes, Ll

“…J. Math. Phys. 49, 022102 (2008) We consider entanglement distillation from a single-copy of a multipartite state, and instead of rates we analyze the…”
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All entangled states are useful for information processing by Masanes, Ll

“…Phys. Rev. Lett. 96, 150501 (2006). The question whether all entangled states can be used as a nonclassical resource has remained open so far. Here we provide…”
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Necessary and sufficient condition for quantum-generated correlations by Masanes, Ll

“…We present a non-linear inequality that completely characterizes the set of correlation functions obtained from bipartite quantum systems, for the case in…”
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General properties of nonsignaling theories by Masanes, Ll, Acin, A., Gisin, N.

“…This article identifies a series of properties common to all theories that do not allow for superluminal signaling and predict the violation of Bell…”
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Secrecy properties of quantum channels by Acín, A., Bae, J., Bagan, E., Baig, M., Masanes, Ll, Muñoz-Tapia, R.

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General properties of Nonsignaling Theories by Masanes, Ll, Acin, A, Gisin, N

“…Phys. Rev. A. 73, 012112 (2006) This article identifies a series of properties common to all theories that do not allow for superluminal signaling and predict…”
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Secrecy properties of quantum channels by Acin, A., Bae, J., Bagan, E., Baig, M., Munoz-Tapia, R., Masanes, Ll, School of Mathematics, University of Bristol, Bristol BS8 1TW

“…We identify those properties of a quantum channel that are relevant for cryptography. We focus on general key distribution protocols that use prepare and…”
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Multipartite Bound Information exists and can be activated by Acin, A, Cirac, J. I, Masanes, Ll

“…Phys. Rev. Lett. 92, 107903 (2004) We prove the conjectured existence of Bound Information, a classical analog of bound entanglement, in the multipartite…”
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Unified Framework for Correlations in Terms of Local Quantum Observables by Acín, A, Augusiak, R, Cavalcanti, D, Hadley, C, Korbicz, J. K, Lewenstein, M, Masanes, Ll, Piani, M

“…Physical Review Letters 104, 140404 (2010) We provide a unified framework for nonsignalling quantum and classical multipartite correlations, allowing all to be…”
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Full security of quantum key distribution from no-signaling constraints by Masanes, Ll, Renner, R, Christandl, M, Winter, A, Barrett, J

“…IEEE Transactions on Information Theory, Volume 60, Issue 8, pages 4973-4986, year 2014 We analyze a cryptographic protocol for generating a distributed secret…”
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