Localization lifetime of a many‐body system with periodic constructed disorder

Localization lifetime of a many‐body system with periodic constructed disorder
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具有周期性构造无序的多体系统的定位寿命

DOI:
10.1002/andp.201600366
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发表时间:
2017
期刊:
影响因子:
2.4
通讯作者:
Dykman, Mark I.
Dykman, Mark I.
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Schecter, Michael;Shapiro, Michael;Dykman, Mark I.

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我们发现,在多体系统中,所有粒子都可以被强烈地限制在最初占据的位置上,时间的尺度是位置能量带宽与跳跃幅度之比的高次方。这样的时域公式是对具有大局部化长度的所有定态的多体局部化公式的补充。通过在一维链中构造具有大周期的位置能量的周期序列来实现长的局域化寿命。局域化寿命的缩放是独立的粒子的数量为一个广泛的耦合强度。数值计算证实了分析结果。
We show that, in a many‐body system, all particles can be strongly confined to the initially occupied sites for a time that scales as a high power of the ratio of the bandwidth of site energies to the hopping amplitude. Such time‐domain formulation is complementary to the formulation of the many‐body localization of all stationary states with a large localization length. The long localization lifetime is achieved by constructing a periodic sequence of site energies with a large period in a one‐dimensional chain. The scaling of the localization lifetime is independent of the number of particles for a broad range of the coupling strength. The analytical results are confirmed by numerical calculations.
DOI: 10.1103/physrevlett.64.3119
发表时间: 1990-06
影响因子: 8.6
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通讯作者: Åberg
量子混沌和旋转阻尼
DOI: --
发表时间: 1992
期刊:
影响因子: --
作者:
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通讯作者: S. Åberg
DOI: 10.1103/physrevb.88.014206
发表时间: 2013-07-22
期刊: PHYSICAL REVIEW B
影响因子: 3.7
作者:
Huse, David A.;Nandkishore, Rahul;Sondhi, S. L.
通讯作者: Sondhi, S. L.