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arXiv 2302.05480cond-mat.quant-gascond-mat.stat-mechmath-phmath.MP
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圆上一维自由电子气体的热力学极限

Thermodynamic limit of the free electron gas on a circle

Riccardo Fantoni

AI总结:

本文研究了圆上一维自由电子气体基态,通过假设热力学极限与动能本征函数展开极限一致,从密度矩阵推导出正则系综配分函数,并指出该近似无法给出有限温度配分函数。

摘要:

我们证明,对于圆上一维自由电子气体的基态,通过假设热力学极限与动能本征函数展开的极限相一致,可以容易地从密度矩阵推导出正则系综配分函数的解析表达式。由于这两个极限不能被选为一致的,该近似无法给出有限温度下的配分函数。

英文摘要:

We show that for the ground state of a one dimensional free electron gas on a circle the analytic expression for the canonical ensemble partition function can be easily derived from the density matrix by assuming that the thermodynamic limit coincides with the limit of the eigenfunction expansion of the kinetic energy. This approximation fails to give the finite temperature partition function because those two limits cannot be chosen as coincident.

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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