Results 41 to 50 of about 9,815 (180)

Towards an equivalence between maximal entanglement and maximal quantum nonlocality

open access: yesNew Journal of Physics, 2018
While all bipartite pure entangled states are known to generate correlations violating a Bell inequality, and are therefore nonlocal, the quantitative relation between pure state entanglement and nonlocality is poorly understood.
Victoria Lipinska   +3 more
doaj   +1 more source

Deterministic all-versus-nothing proofs of Bell nonlocality based on non-stabilizer states

open access: yesNew Journal of Physics, 2023
The all-versus-nothing proof of Bell nonlocality is a prominent demonstration of Bell’s theorem without inequalities. There are two kinds of such proofs: the deterministic all-versus-nothing proof and the probabilistic all-versus-nothing proof, which ...
Weidong Tang
doaj   +1 more source

Position-Momentum Bell-Nonlocality with Entangled Photon Pairs [PDF]

open access: yes, 2015
Witnessing continuous-variable Bell nonlocality is a challenging endeavor, but Bell himself showed how one might demonstrate this nonlocality. Though Bell nearly showed a violation using the CHSH inequality with sign-binned position-momentum statistics ...
Howell, John C.   +3 more
core   +3 more sources

Certifying long-range quantum correlations through routed Bell tests [PDF]

open access: yesQuantum
Losses in the transmission channel, which increase with distance, pose a major obstacle to photonics demonstrations of quantum nonlocality and its applications. Recently, Chaturvedi, Viola, and Pawlowski (CVP) [arXiv:2211.14231] introduced a variation of
Edwin Peter Lobo   +2 more
doaj   +1 more source

Dynamical Bell Nonlocality

open access: yes, 2020
Quantum mechanics is a highly nonlocal theory of nature. Quantum systems exhibit correlations which cannot be described by any classical theory of locality. We develop the resource theory of dynamical Bell nonlocality, which includes bipartite states, classical channels, quantum channels and measurements. In the state scenario, all separable states are
openaire   +2 more sources

Quantifying randomness from Bell nonlocality

open access: yes, 2023
The twentieth century was marked by two scientific revolutions. On the one hand, quantum mechanics questioned our understanding of nature and physics. On the other hand, came the realisation that information could be treated as a mathematical quantity. They together brought forward the age of information. A conceptual leap took place in the 1980's,
openaire   +4 more sources

Operational Significance of the Quantum Resource Theory of Buscemi Nonlocality

open access: yesPRX Quantum, 2021
Although entanglement is necessary for observing nonlocality in a Bell experiment, there are entangled states that can never be used to demonstrate nonlocal correlations. In a seminal paper Buscemi [Phys. Rev. Lett.
Patryk Lipka-Bartosik   +3 more
doaj   +1 more source

Tripartite Svetlichny test with measurement dependence

open access: yesFrontiers in Physics
The Bell test, as an important method for detecting nonlocality, is widely used in device-independent quantum information processing tasks. The security of these tasks is based on an assumption called measurement independence.
Run-Ze Li   +5 more
doaj   +1 more source

Genuine hidden quantum nonlocality

open access: yes, 2013
The nonlocality of certain quantum states can be revealed by using local filters before performing a standard Bell test. This phenomenon, known as hidden nonlocality, has been so far demonstrated only for a restricted class of measurements, namely ...
Bowles, Joseph   +3 more
core   +2 more sources

Bell Nonlocality

open access: yes, 2019
Abstract Nonlocality was discovered by John Bell in 1964, in the context of the debates about quantum theory, but is a phenomenon that can be studied in its own right. Its observation proves that measurements are not revealing pre-determined values, falsifying the idea of “local hidden variables” suggested by Einstein and others.
openaire   +2 more sources

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