ζ-function regularization, the multiplicative anomaly, and finite temperature quantum field theory -: art. no. 105001

被引：17

作者：

McKenzie-Smith, JJ ^{[1
]}

Toms, DJ ^{[1
]}

机构：

[1] Univ Newcastle Upon Tyne, Dept Phys, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

来源：

PHYSICAL REVIEW D | 1998年 / 58卷 / 10期

关键词：

D O I：

10.1103/PhysRevD.58.105001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We discuss the role of the multiplicative anomaly for a complex scalar field at finite temperature and density. It is argued that physical considerations must be applied to determine which of the many possible expressions for the effective action obtained by the functional integral method is correct. This is done by first studying the non-relativistic field where the thermodynamic potential is well known. The relativistic case is also considered. We emphasize that the role of the multiplicative anomaly in finite temperature quantum field theory is not to lead to new physics, but rather to preserve the equality among the various expressions for the effective action. [S0556-2821(98)11320-6].

引用

页数：10

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