Information propagation through quantum chains with fluctuating disorder
Information propagation through quantum chains with fluctuating disorder
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通过具有波动无序的量子链传播信息
DOI：
10.1103/physreva.80.052319
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发表时间：
2009
影响因子：
2.9
通讯作者：
Burrell C
中科院分区：
文献类型：
--
作者：
Burrell C
我们研究了在每个站点上独立波动的外场存在下，信息通过一维最近邻相互作用量子自旋链的传播。我们研究了两个根本不同的模型：（i）一个模型与一般的最近邻相互作用的领域波动的强度和方向和（ii）链放置在一个波动的领域对齐的方向。在这两种情况下，我们发现，信息的传播被抑制的方式是完全不同的抑制时，所观察到的模型被放置在一个静态无序的领域。
We investigate the propagation of information through one-dimensional nearest-neighbor interacting quantum spin chains in the presence of external fields which fluctuate independently on each site. We study two fundamentally different models: (i) a model with general nearest-neighbor interactions in a field which fluctuates in both strength and direction and (ii) thechain placed in a fluctuating field aligned in thedirection. In both cases we find that information propagation is suppressed in a way which is quite different from the suppression observed when themodel is placed in a statically disordered field.