摘要翻译:
在无序势中超冷原子的量子输运实验中,我们超出了目前研究的范围,预测了当无序强度变化时,正则动力学和量子混沌动力学之间的交叉。我们的光谱方法是基于描述深随机势中相互作用原子的玻色-哈伯德模型。从局域动力学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,并可以通过监测典型实验初态的演化在实验室中得到验证。
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英文标题:
《Engineering many-body quantum dynamics by disorder》
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作者:
Pierfrancesco Buonsante and Sandro Wimberger
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最新提交年份:
2008
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分类信息:
一级分类:Physics 物理学
二级分类:Disordered Systems and Neural Networks 无序系统与神经网络
分类描述:Glasses and spin glasses; properties of random, aperiodic and quasiperiodic systems; transport in disordered media; localization; phenomena mediated by defects and disorder; neural networks
眼镜和旋转眼镜;随机、非周期和准周期系统的性质;无序介质中的传输;本地化;由缺陷和无序介导的现象;神经网络
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一级分类:Physics 物理学
二级分类:Statistical Mechanics 统计力学
分类描述:Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变,热力学,场论,非平衡现象,重整化群和标度,可积模型,湍流
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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.
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PDF链接:
https://arxiv.org/pdf/710.1853