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arXiv 0908.1737hep-th
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极值黑洞有限密度下的纠缠熵

Entanglement Entropy at Finite Density from Extremal Black Holes

Brian Swingle

摘要:

我计算了强耦合2+ 1 d量子场论的纠缠熵,其中包含有限密度的费米子,使用规范/引力对偶。对偶几何是3+ 1维Einstein-Maxwell理论中的极值黑洞。这个系统最近被证明表现出非费米液体行为,但领先的几何贡献的纠缠熵并没有产生预期的违反边界定律。我讨论这个负面的结果的背景下,试图找到高度纠缠态的量子物质。

英文摘要:

I compute the entanglement entropy of a strongly coupled 2+1d quantum field theory containing fermions at finite density using gauge/gravity duality. The dual geometry is an extremal black hole in 3+1d Einstein-Maxwell theory. This system was recently shown to exhibit non-Fermi liquid behavior, but the leading geometrical contribution to the entanglement entropy does not produce an expected violation of the boundary law. I discuss this negative result in the context of attempts to find highly entangled states of quantum matter.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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