Relaxation dynamics in the gapped XXZ spin-1/2 chain

Relaxation dynamics in the gapped XXZ spin-1/2 chain
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有间隙的 XXZ 自旋 1/2 链中的弛豫动力学

DOI:
10.1088/1367-2630/12/5/055028
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发表时间:
2010
影响因子:
3.3
通讯作者:
J. Caux
J. Caux
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
J. Mossel;J. Caux

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我们研究了释放到系统中的淬火准备域壁状态的动力学,该系统的酉时间演化由海森堡自旋 1/2 有隙反铁磁链的哈密顿量决定。使用精确的波函数及其与畴壁状态的重叠,使我们能够高精度地描述有限和无限系统的释放动力学,直至长时间限制。无限系统的结果使我们能够严格证明处于带隙状态(Δ>1)的系统不能严格意义上的热化。
We study the dynamics of a quench-prepared domain wall state released into a system whose unitary time evolution is dictated by the Hamiltonian of the Heisenberg spin-1/2 gapped antiferromagnetic chain. Using exact wavefunctions and their overlaps with the domain wall state allows us to describe the release dynamics to high accuracy, up to the long-time limit, for finite as well as infinite systems. The results for the infinite system allow us to rigorously prove that the system in the gapped regime (Δ>1) cannot thermalize in the strict sense.
硬核玻色子膨胀气体的相关性
DOI: 10.48550/arxiv.0709.2374
发表时间: 2007
期刊: --
影响因子: --
作者:
Gangardt D
通讯作者: Gangardt D
DOI: 10.1103/physrevlett.98.210405
发表时间: 2007-05-25
影响因子: 8.6
作者:
Manmana, S. R.;Wessel, S.;Muramatsu, A.
通讯作者: Muramatsu, A.