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arXiv 2304.03311quant-phcond-mat.str-elhep-lathep-th
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非平衡蒙特卡罗模拟中的纠缠熵

Entanglement entropy from non-equilibrium Monte Carlo simulations

Andrea Bulgarelli, Marco Panero

AI总结:

本文利用基于Jarzynski定理的并行蒙特卡罗算法,在二维和三维伊辛模型中精确计算纠缠熵的次领头阶修正,并验证了二维结果与共形场论一致,为强耦合理论提供了新工具。

摘要:

我们使用基于Jarzynski定理的模拟算法研究格点场论中的纠缠熵。我们关注二维和三维伊辛模型的熵c函数:在二维中,我们针对共形场论的已知解析结果验证了我们的算法,随后展示了三维情形的新结果。我们证明,我们的算法在图形处理单元上高度并行化,能够精确确定面积律的次领头阶修正,这一修正已在许多近期工作中被研究。本文还讨论了将此研究推广到其他强耦合理论的可能性。

英文摘要:

We study the entanglement entropy in lattice field theory using a simulation algorithm based on Jarzynski's theorem. We focus on the entropic c-function for the Ising model in two and in three dimensions: after validating our algorithm against known analytical results from conformal field theory in two dimensions, we present novel results for the three-dimensional case. We show that our algorithm, which is highly parallelized on graphics processing units, allows one to precisely determine the subleading corrections to the area law, which have been investigated in many recent works. Possible generalizations of this study to other strongly coupled theories are discussed.

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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