期刊
PHYSICAL REVIEW A
卷 80, 期 5, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.80.052319
关键词
fluctuations; Heisenberg model; lattice theory
资金
- EPSRC
- Nuffield Foundation
- EU
- EURYI
- Engineering and Physical Sciences Research Council [EP/G045771/1] Funding Source: researchfish
- EPSRC [EP/G045771/1] Funding Source: UKRI
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) the XX chain placed in a fluctuating field aligned in the z direction. In both cases we find that information propagation is suppressed in a way which is quite different from the suppression observed when the XX model is placed in a statically disordered field.
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