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arXiv math-ph/0410019math-phhep-thmath.MP
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紧致域上标量场的Zeta函数正则化

Zeta function regularization for a scalar field in a compact domain

G. Ortenzi, M. Spreafico

摘要:

我们用与$M$上的拉普拉斯算子相关的zeta函数来表示$S^1_r\times M$上的拉普拉斯算子相关的zeta函数,其中$M$是紧致连通黎曼流形.这给出了任何紧凑域$M$在低温和高温下的相关物理模型的配分函数的公式。此外,我们提供了一个精确的公式为zeta函数在任何值的$r$时,$M$是一个$D$维盒或一个$D$维环面,这使得一个严格的zeta不变量的计算和分析的主要热力学函数相关联的物理模型在有限的温度。

英文摘要:

We express the zeta function associated to the Laplacian operator on $S^1_r\times M$ in terms of the zeta function associated to the Laplacian on $M$, where $M$ is a compact connected Riemannian manifold. This gives formulas for the partition function of the associated physical model at low and high temperature for any compact domain $M$. Furthermore, we provide an exact formula for the zeta function at any value of $r$ when $M$ is a $D$-dimensional box or a $D$-dimensional torus; this allows a rigorous calculation of the zeta invariants and the analysis of the main thermodynamic functions associated to the physical models at finite temperature.

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