Results 71 to 80 of about 4,651 (153)

Self-testing tilted strategies for maximal loophole-free nonlocality

npj Quantum Information
The 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, Ekta Panwar, Giovanni Scala, Mateus Araújo, Máté Farkas, Anubhav Chaturvedi   +5 more
doaj   +1 more source

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, Pironio, Stefano, Vértesi, Tamás, Wittek, Peter   +3 more
core   +1 more source

Pironio, Mons. Eduardo, Escritos Pastorales. Ed. BAC. 1 vol. de 262 pgs. 122x200. Madrid 1973

, 1978
Theologica, v. 13 n. 3-4 (1978)
openaire   +2 more sources

Maximal quantum randomness in Bell tests

, 2012
The non-local correlations exhibited when measuring entangled particles can be used to certify the presence of genuine randomness in Bell experiments. While non-locality is necessary for randomness certification, it is unclear when and why non-locality ...
Acin, Antonio, Dhara, Chirag, Prettico, Giuseppe   +2 more
core   +1 more source

A paradox in bosonic energy computations via semidefinite programming relaxations

New Journal of Physics, 2013
We show that the recent hierarchy of semidefinite programming relaxations based on non-commutative polynomial optimization and reduced density matrix variational methods exhibits an interesting paradox when applied to the bosonic case: even though it can
M Navascués, A García-Sáez, A Acín, S Pironio, M B Plenio   +4 more
doaj   +1 more source

Entanglement-assisted quantum communication with simple measurements. [PDF]

Nat Commun, 2022
Piveteau A, Pauwels J, Håkansson E, Muhammad S, Bourennane M, Tavakoli A.   +5 more
europepmc   +1 more source

Maximal violation of a broad class of Bell inequalities and its implication on self-testing

Physical Review Research, 2019
In quantum information, lifting is a systematic procedure that can be used to derive—when provided with a seed Bell inequality—other Bell inequalities applicable in more complicated Bell scenarios.
C. Jebarathinam, Jui-Chen Hung, Shin-Liang Chen, Yeong-Cherng Liang   +3 more
doaj   +1 more source

An Extension of Combinatorial Contextuality for Cognitive Protocols. [PDF]

Front Psychol, 2022
Obeid AK, Bruza P, Moreira C, Bruns A, Angus D.   +4 more
europepmc   +1 more source

Looking for symmetric Bell inequalities

, 2010
Finding all Bell inequalities for a given number of parties, measurement settings, and measurement outcomes is in general a computationally hard task. We show that all Bell inequalities which are symmetric under the exchange of parties can be found by ...
, , Avis D, Bancal J-D, Bell J S, Collins D, Jean-Daniel Bancal, Navacues M, Nicolas Gisin, Pironio S, Pitowsky I, Stefano Pironio   +11 more
core   +3 more sources

Quantifying the intrinsic randomness in sequential measurements

New Journal of Physics
In the standard Bell scenario, when making a local projective measurement on each system component, the amount of randomness generated is restricted.
Xinjian Liu, Yukun Wang, Yunguang Han, Xia Wu   +3 more
doaj   +1 more source