arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1609.08076cond-mat.dis-nnmath-phmath.MP
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多体定域系统运动的局部积分

Review: Local Integrals of Motion in Many-Body Localized systems

J. Z. Imbrie, V. Ros, A. Scardicchio

摘要:

我们回顾了当前(截至2016年秋季)关于多体定域模型中涌现可积性的研究现状。我们首先解释如何完全多体局域化系统的现象可以恢复,如果一个假设存在一个完整的一套(准)本地运营商与哈密尔顿(局部积分的运动,或LIOMs)交换。我们描述了这个想法的演变,从最初的猜想,微扰的建设,给一个无序的自旋链的数学证明。我们讨论了建议的数值算法的建设LIOMs和辩论的存在和性质,这样的运营商在系统中的多体流动性的边缘,并在尺寸大于一个的状态。

英文摘要:

We review the current (as of Fall 2016) status of the studies on the emergent integrability in many-body localized models. We start by explaining how the phenomenology of fully many-body localized systems can be recovered if one assumes the existence of a complete set of (quasi)local operators which commute with the Hamiltonian (local integrals of motion, or LIOMs). We describe the evolution of this idea from the initial conjecture, to the perturbative constructions, to the mathematical proof given for a disordered spin chain. We discuss the proposed numerical algorithms for the construction of LIOMs and the status of the debate on the existence and nature of such operators in systems with a many-body mobility edge, and in dimensions larger than one.

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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