Results 41 to 50 of about 2,569,347 (213)
Demonstrating the power of quantum computers, certification of highly entangled measurements and scalable quantum nonlocality [PDF]
npj Quantum Information, 2020 Increasingly sophisticated quantum computers motivate the exploration of their abilities in certifying genuine quantum phenomena. Here, we demonstrate the power of state-of-the-art IBM quantum computers in correlation experiments inspired by quantum ...
Elisa Baumer, N. Gisin, A. Tavakoli
semanticscholar +1 more source
Causal hierarchy of multipartite Bell nonlocality [PDF]
Quantum, 2017 As with entanglement, different forms of Bell nonlocality arise in the multipartite scenario. These can be defined in terms of relaxations of the causal assumptions in local hidden-variable theories.
Rafael Chaves +2 more
doaj +1 more source
, 2022 This repository contains the codes used for the article "Proofs on network quantum nonlocality aided by machine learning. Alejandro Pozas-Kerstjens, Nicolas Gisin, and Marc-Olivier Renou. arXiv:2203.16543." It provides the codes for producing the results
Alejandro Pozas-Kerstjens
core +1 more source
Einstein-Podolsky-Rosen Steering for Mixed Entangled Coherent States
Entropy, 2021 By using the Born Markovian master equation, we study the relationship among the Einstein–Podolsky–Rosen (EPR) steering, Bell nonlocality, and quantum entanglement of entangled coherent states (ECSs) under decoherence.
Sayed Abdel-Khalek +3 more
doaj +1 more source
Simultaneous sudden change in the exact values of geometric quantum discord and measurement induced nonlocality [PDF]
Iranian Journal of Astronomy and Astrophysics, 2018 Recent studies show that two completely distinct fields as quantum information and string theory realization can be related and share some of the same properties.
Samira Nazifkar, Hakimeh Jaghouri
doaj +1 more source
Local distinguishability based genuinely quantum nonlocality without entanglement [PDF]
Journal of Physics A: Mathematical and Theoretical, 2020 Recently, Halder et al (2019 Phys. Rev. Lett. 122 040403) proposed the concept of strong nonlocality without entanglement: an orthogonal set of fully product states in multipartite quantum systems that is locally irreducible for every bipartition of its ...
Mao-Sheng Li +3 more
semanticscholar +1 more source
Decoherence-Induced Sudden Death of Entanglement and Bell Nonlocality
Photonics, 2022 Decoherence due to the unwanted interaction between a quantum system and environment leads to the degradation of quantum coherence. In particular, for an entangled state, decoherence makes a loss of entanglement and Bell nonlocality known as entanglement
Dong-Gil Im, Yoon-Ho Kim
doaj +1 more source
A neural network oracle for quantum nonlocality problems in networks [PDF]
npj Quantum Information, 2019 Characterizing quantum nonlocality in networks is a challenging, but important problem. Using quantum sources one can achieve distributions which are unattainable classically.
Tamás Kriváchy +5 more
semanticscholar +1 more source
A histories perspective on characterizing quantum non-locality [PDF]
, 2014 We introduce a framework for studying non-locality and contextuality inspiredby the path integral formulation of quantum theory. We prove that the existenceof a strongly positive joint quantum measure— the quantum analogue of a jointprobability measure —
Dowker, Fay +3 more
core +1 more source
Strong Quantum Nonlocality without Entanglement. [PDF]
Physical Review Letters, 2018 Quantum nonlocality is usually associated with entangled states by their violations of Bell-type inequalities. However, even unentangled systems, whose parts may have been prepared separately, can show nonlocal properties. In particular, a set of product
Saronath Halder +3 more
semanticscholar +1 more source