Calculation of Transport Coefficients of Ultra Cold Normal Dipolar Bose Gas
Calculation of Transport Coefficients of Ultra Cold Normal Dipolar Bose Gas
复制标题
超冷正偶极玻色气体输运系数的计算
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
M. Elahi
中科院分区：
文献类型：
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作者：
M. Dehkordi;M. A. Shahzamanian;M. Abolhasani;M. Elahi
导出了超冷正常偶极玻色气体弛豫速率、粘度和热导率的玻尔兹曼方程。我们使用各向异性偶极-偶极相互作用。我们得到的弛豫速率的温度依赖性，并给出了正式的表达式的剪切粘度和导热系数。这些系数与。计算中势的不同形式表现在粘滞系数和导热系数上。偶极-偶极相互作用的粘滞系数与接触势之比为三个数量级，导热系数与接触势之比为二个数量级。
We derive the Boltzmann equation for relaxation rate, viscosity and thermal conductivity in ultra cold normal dipolar bose gas. We use anisotropic dipole- dipole interaction. We obtain the temperature dependence of the relaxation rate and give formal expressions for the shear viscosity and thermal conductivity coefficients. These coefficients are proportional to . The different form of potentials in calculations show themselves in the coefficients of the viscosity and thermal conductivity. The ratio of the viscosity coefficient for dipole-dipole interaction to contact potential is three order and this ratio for thermal conductivity is two order.