paper

Mixed state entanglement measures as probe for confinement

arXiv:2010.07702 · doi:10.1103/PhysRevD.102.126022

Abstract

We study holographic aspects of mixed state entanglement measures in various large top-down as well as bottom-up confining models. For the top-down models, we consider wrapped and branes gravity solutions whereas, for the bottom-up confining model, the Einstein-Maxwell-dilaton gravity solution is considered. We study entanglement entropy, mutual information, entanglement wedge cross-section and entanglement negativity for the strip subsystems and find model independent features of these entanglement measures in all confining theories. The entanglement negativity and entropy exhibit a phase transition at the same critical strip length , at which the order of these measures changes from to . The entanglement wedge cross-section similarly shows an order change at and exhibits a discontinuous behaviour each time a phase transition between different entangling surfaces occur. We further test the inequality involving mutual information and entanglement wedge cross-section, and find that the latter always exceeds half of the former.

arXiv comment36 pages, many figures, published version, reference and discussion added

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