Results 71 to 80 of about 4,717 (155)
Classical simulation of entanglement swapping with bounded communication [PDF]
, 2012 Entanglement appears under two different forms in quantum theory, namely as a property of states of joint systems and as a property of measurement eigenstates in joint measurements.
A. Broadbent +12 more
core +5 more sources
Optimal randomness certification from one entangled bit
, 2015 By performing local projective measurements on a two-qubit entangled state one can certify in a device-independent way up to one bit of randomness. We show here that general measurements, defined by positive-operator-valued measures, can certify up to ...
Acín, Antonio +3 more
core +1 more source
All Pure Bipartite Entangled States can be Self-Tested [PDF]
, 2017 Device-independent self-testing allows to uniquely characterize the quantum state shared by untrusted parties (up to local isometries) by simply inspecting their correlations, and requiring only minimal assumptions, namely a no-signaling constraint on ...
Coladangelo, Andrea +2 more
core +3 more sources
Semi-device-independent characterization of quantum measurements under a minimum overlap assumption
, 2019 Recently, a novel framework for semi-device-independent quantum prepare-and-measure protocols has been proposed, based on the assumption of a limited distinguishability between the prepared quantum states.
Brask, Jonatan Bohr +4 more
core +2 more sources
Exploring the Local Orthogonality Principle [PDF]
, 2014 Nonlocality is arguably one of the most fundamental and counterintuitive aspects of quantum theory. Nonlocal correlations could, however, be even more nonlocal than quantum theory allows, while still complying with basic physical principles such as no ...
Acín, A. +6 more
core +3 more sources
Bound non-locality and activation
, 2010 We investigate non-locality distillation using measures of non-locality based on the Elitzur-Popescu-Rohrlich decomposition. For a certain number of copies of a given non-local correlation, we define two quantities of interest: (i) the non-local cost ...
Alejo Salles +4 more
core +1 more source
Mutually unbiased bases: polynomial optimization and symmetry [PDF]
QuantumA set of $k$ orthonormal bases of $\mathbb C^d$ is called mutually unbiased if $|\langle e,f\rangle |^2 = 1/d$ whenever $e$ and $f$ are basis vectors in distinct bases. A natural question is for which pairs $(d,k)$ there exist $k$ mutually unbiased bases
Sander Gribling, Sven Polak
doaj +1 more source
Random 'choices' and the locality loophole
, 2014 It has been claimed that to close the locality loophole in a Bell experiment, random numbers of quantum origin should be used for selecting the measurement settings.
Pironio, Stefano
core
Self-testing tilted strategies for maximal loophole-free nonlocality
npj Quantum InformationThe degree of experimentally attainable nonlocality, as gauged by the loophole-free or effective violation of Bell inequalities, remains severely limited due to inefficient detectors.
Nicolas Gigena +5 more
doaj +1 more source
, 2015 It is a recent realization that many of the concepts and tools of causal discovery in machine learning are highly relevant to problems in quantum information, in particular quantum nonlocality. The crucial ingredient in the connection between both fields
Chaves, Rafael
core +1 more source