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arXiv 0710.1853cond-mat.dis-nncond-mat.stat-mech
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利用无序设计多体量子动力学

Engineering many-body quantum dynamics by disorder

Pierfrancesco Buonsante, Sandro Wimberger

摘要:

超越目前研究的制度,在实验中的超冷原子在无序势的量子输运,我们预测之间的交叉规则和量子混沌动力学时,改变无序的强度。我们的谱方法是基于玻色-哈伯德模型描述原子在深随机势相互作用。从本地化到扩散动力学的预测交叉依赖于相互作用和无序的同时存在,并且可以在实验室中通过监测典型实验初始状态的演变来验证。

英文摘要:

Going beyond the currently investigated regimes in experiments on quantum transport of ultracold atoms in disordered potentials, we predict a crossover between regular and quantum-chaotic dynamics when varying the strength of disorder. Our spectral approach is based on the Bose-Hubbard model describing interacting atoms in deep random potentials. The predicted crossover from localized to diffusive dynamics depends on the simultaneous presence of interactions and disorder, and can be verified in the laboratory by monitoring the evolution of typical experimental initial states.

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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