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Acta Physica Sinica
Vol. 68, Issue 4, 040302-1 (2019)

Transport phenomena in dilute quantum gases

Shi-Zhong Zhang^*

DOI: 10.7498/aps.68.20181966 Cite this Article

Shi-Zhong Zhang. Transport phenomena in dilute quantum gases[J]. Acta Physica Sinica, 2019, 68(4): 040302-1 Copy Citation Text

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van der Waals attractive potential and short-range repulsive potential between atoms.原子之间的范德瓦耳斯吸引势和短程排斥势

Fig. 1. van der Waals attractive potential and short-range repulsive potential between atoms.原子之间的范德瓦耳斯吸引势和短程排斥势

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Identical spin rotation effect.全同自旋旋转效应

Fig. 2. Identical spin rotation effect.全同自旋旋转效应

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	长度尺度	备注
经典气体	${\lambda _T} < {r_0} < d$	经典散射; 麦克斯韦-玻尔兹曼经典分布
量子气体	${r_0} < {\lambda _T} < d$	量子散射; 麦克斯韦-玻尔兹曼经典分布
量子简并气体	${r_0} < d < {\lambda _T}$	量子散射; 玻色-爱因斯坦或者费米- 狄拉克分布

Table 1. Three different regimes in the study of cold atom physics.

	实验测量值 (单位 $\frac{\hbar }{m}$)	实验组
二维费米系统横向自旋扩散	0.0067	剑桥^[8]
二维费米系统横向自旋扩散	1.7	多伦多^[9]
三维费米系统纵向自旋扩散	1.34	MIT^[6]
三维费米系统横向自旋扩散	1.08	多伦多^[7]

Table 2.

Spin diffusion constants for strongly interacting Fermi gases.

强相互作用费米系统的自旋扩散系数

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Shi-Zhong Zhang. Transport phenomena in dilute quantum gases[J]. Acta Physica Sinica, 2019, 68(4): 040302-1

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