Entanglement entropy as a probe of the proximity effect in holographic superconductors

Entanglement entropy as a probe of the proximity effect in holographic superconductors
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纠缠熵作为全息超导体邻近效应的探针

DOI:
10.1007/jhep05(2014)130
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发表时间:
2014-01
期刊:
The Journal of High Energy Physics
影响因子:
--
通讯作者:
Wang Bin
Wang Bin
中科院分区:
其他
文献类型:
--
作者:
Kuang Xiao-Mei;Papantonopoulos Eleftherios;Wang Bin

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在完全反作用的引力系统中,利用规范/引力对偶性研究了纠缠熵作为超导系统邻近效应的探针。当超导相的纠缠熵小于正常相的纠缠熵时,我们发现在超导相与正常相的接触界面附近,由于库珀对向正常相的泄漏,纠缠熵有不同的行为。我们通过计算边界界面附近的电导率来验证这种行为。
A bstractWe 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.
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