Quantum Transport through a Tonks-Girardeau Gas
Quantum Transport through a Tonks-Girardeau Gas
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DOI：
10.1103/physrevlett.103.150601
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发表时间：
2009-10-09
影响因子：
8.6
通讯作者：
Koehl, Michael
中科院分区：
文献类型：
--
作者：
Palzer, Stefan;Zipkes, Christoph;Koehl, Michael
研究了自旋杂质原子通过强相互作用一维玻色气体的传输。最初良好定位的杂质被一个恒定的力加速，非常类似于电子受到偏置电压，并作为一维杂质自旋波包传播。我们跟踪杂质在原位的运动，并表征相互作用诱导的动力学。我们观察到一个非常复杂的非平衡动力学，包括出现大的密度波动，在剩余的玻色气体，和多重散射事件导致耗散的杂质的运动。
We investigate the propagation of spin impurity atoms through a strongly interacting one-dimensional Bose gas. The initially well localized impurities are accelerated by a constant force, very much analogous to electrons subject to a bias voltage, and propagate as a one-dimensional impurity spin wave packet. We follow the motion of the impurities in situ and characterize the interaction induced dynamics. We observe a very complex nonequilibrium dynamics, including the emergence of large density fluctuations in the remaining Bose gas, and multiple scattering events leading to dissipation of the impurity's motion.