Entanglement Entropy as a Probe of the Proximity Effect in Holographic Superconductors
arXiv:1401.5720 · doi:10.1007/JHEP05(2014)130
Abstract
We study the entanglement entropy as a probe of the proximity effect of a superconducting system by using the gauge/gravity duality in a fully back-reacted gravity system. While the entanglement entropy in the superconducting phase is less than the entanglement entropy in the normal phase, we find that near the contact interface of the superconducting to normal phase the entanglement entropy has a different behavior due to the leakage of Cooper pairs to the normal phase. We verify this behavior by calculating the conductivity near the boundary interface.
10 pages, 7 figures, extended version to be published in JHEP
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