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arXiv 1503.02643cond-mat.quant-gas
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$d$维广义幂律势下费米气体费米能的注记

A note on Fermi energy of Fermi gas trapped under generic power law potential in $d$-dimension

Mir Mehedi Faruk

摘要:

本文计算了零温下,在$d$维最一般的幂律势下,任意运动学特性的费米气体的平均每费米子能量。在以前的论文中(M。阿查里亚J Phys.31 L89(2010)),其显示,在自由理想费米气体的情况下,随着维度增加,平均能量接近费米能量,并且在无限维度中,平均能量变得等于在$T=0$的费米能量。本文指出,对于有限维的囚禁系统,平均能量依赖于幂律指数,但当维数趋于无穷大时,平均能量与费米能一致,对任何幂律指数都是如此。本文的结果更具有一般性,因为我们可以描述自由系统以及任何被困系统,只要适当地选择幂律指数,并且对任何运动学参数都是正确的。

英文摘要:

Average energy per fermion in case of Fermi gas with any kinematic characteristic, trapped under most general power law potential in $d$ dimension has been calculated at zero temperature. In a previous paper (M. Acharyya, Eur. J Phys. 31 L89 (2010)) it was shown, in case of free ideal Fermi gas as dimension increases average energy approaches to Fermi energy and in infinite dimension average energy becomes equal to Fermi energy at $T=0$. In this letter it is shown that, for trapped system at finite dimension the average energy depends on power law exponent, but as dimension tends to infinity average energy coincides with Fermi energy for any power law exponent. The result obtained in this manuscript is more general as we can describe free system as well as any trapped system with appropriate choice of power law exponent and true for any kinematic parameter.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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