Violation of a Bell-like inequality in neutron optical experiments: quantum contextuality

Violation of a Bell-like Inequality in Neutron Optical Experiments: Quantum contextuality

We report a single-neutron optical experiment to demonstrate the violation of a Bell-like inequality. Entanglement is achieved not between particles, but between the degrees of freedom, in this case, for a single-particle. The spin-1/2 property of neutrons are utilized. The total wave function of the neutron is described in a tensor product Hilbert space. A Bell-like inequality is derived not b...

Quantum communication complexity advantage implies violation of a Bell inequality.

We obtain a general connection between a large quantum advantage in communication complexity and Bell nonlocality. We show that given any protocol offering a sufficiently large quantum advantage in communication complexity, there exists a way of obtaining measurement statistics that violate some Bell inequality. Our main tool is port-based teleportation. If the gap between quantum and classical...

Quantum Correlations and Bell Inequality Violation under Decoherence

Quantum Correlations are studied extensively in quantum information domain. Entanglement Measures and Quantum Discord are good examples of these actively studied correlations. Detection of violation in Bell inequalities is also a widely active area in quantum information theory world. In this work, we revisit the problem of analyzing the behavior of quantum correlations and violation of Bell in...

Bipartite Bell Inequality and Maximal Violation

Violation of a Bell inequality in particle physics experimentally verified ?

Relevant aspects for testing Bell inequalities with entangled meson–antimeson systems are analyzed. In particular, we argue that the results of A. Go, J. Mod. Optics 51, 991 (2004), which nicely illustrate the quantum entanglement of B–meson pairs, cannot be considered as a Bell–test refuting local realism.