arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2404.07884hep-thcond-mat.str-el
收藏

非均匀猝灭与Floquet共形场论(CFT)的新视界

New horizons for inhomogeneous quenches and Floquet CFT

University of Oxford(牛津大学)

Hanzhi Jiang, Márk Mezei

AI总结:

该研究针对二维共形对称性生成元驱动的CFT可解设置,借助二维几何理解其量子动力学,在全息对偶三维时空中发现新视界,并提出视界后体算符可通过模流重构。

摘要:

研究非平衡量子多体系统的一条有效途径是突然改变其哈密顿量并研究量子态随后的演化。若仅进行一次,该设置称为猝灭;若周期性进行,则称为Floquet驱动。我们研究了由共形对称性生成元构造的哈密顿量驱动的二维CFT可解设置:在此情形下,量子动力学可通过二维几何来理解。我们探究了该动力学如何在全息对偶的三维时空中体现,并发现了新视界。我们认为,新视界背后的体算符可凭借模流进行重构。

英文摘要:

A fruitful avenue in investigating out-of-equilibrium quantum many-body systems is to abruptly change their Hamiltonian and study the subsequent evolution of their quantum state. If this is done once, the setup is called a quench, while if it is done periodically, it is called Floquet driving. We consider the solvable setup of a two-dimensional CFT driven by Hamiltonians built out of conformal symmetry generators: in this case, the quantum dynamics can be understood using two-dimensional geometry. We investigate how the dynamics is reflected in the holographic dual three-dimensional spacetime and find new horizons. We argue that bulk operators behind the new horizons are reconstructable by virtue of modular flow.

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。

↑