Multipartite non-locality in a thermalized Ising spin-chain

Details Multipartite non-locality in a thermalized Ising spin-chain Multipartite non-locality in a thermalized Ising spin-chain

2010-06-11

arxiv.org/abs/1006.2265v2

Phys. Rev. A 82, 042324 (2010)

Physics

Quantum Physics

8 pages, 6 figures, RevTeX4, Published version

Scientific paper

We study multipartite correlations and non-locality in an isotropic Ising ring under transverse magnetic field at both zero and finite temperature. We highlight parity-induced differences between the multipartite Bell-like functions used in order to quantify the degree of non-locality within a ring state and reveal a mechanism for the passive protection of multipartite quantum correlations against thermal spoiling effects that is clearly related to the macroscopic properties of the ring model.

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