Dynamical theory of superfluidity in one dimension.
Dynamical theory of superfluidity in one dimension.
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一维超流动力学理论。
DOI：
10.1103/physrevlett.107.275302
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发表时间：
2011
影响因子：
8.6
通讯作者：
M. Oshikawa
中科院分区：
文献类型：
--
作者：
Thomas Eggel;M. Cazalilla;M. Oshikawa
报道了一维量子流体超流响应的动力学理论。在长一维系统中，超流性的发生与低温下量子相位滑移的动力学抑制有关。作为频率和温度的函数，这种抑制的效果进行了讨论的实验相关的动量响应函数的框架内。这些结果的应用，以了解超流体性质的氦限制在一维孔与纳米直径，位错在固体4He，和超冷原子气体也进行了简要讨论。
A theory accounting for the dynamical aspects of the superfluid response of one dimensional (1D) quantum fluids is reported. In long 1D systems, the onset of superfluidity is related to the dynamical suppression of quantum phase slips at low temperatures. The effect of this suppression as a function of frequency and temperature is discussed within the framework of the experimentally relevant momentum response function. Applications of these results to the understanding of the superfluid properties of helium confined in 1D pores with nanometer diameter, dislocations in solid 4He, and ultracold atomic gases are also briefly discussed.