Partially quenched chiral perturbation theory and the replica method

被引：90

作者：

Damgaard, PH ^{[1
]}

Splittorff, K ^{[1
]}

机构：

[1] Niels Bohr Inst, DK-2100 Copenhagen O, Denmark

来源：

PHYSICAL REVIEW D | 2000年 / 62卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.62.054509

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We describe a novel framework for partially quenched chiral perturbation theory based on the replica method. The computational rules are exceedingly simple. We illustrate these rules by computing the partially quenched chiral condensate to one-loop order. By considering arbitrary chiral ii-point functions we show explicitly to one-loop order the equivalence between this method and the one based on supersymmetry. It is possible to go smoothly from the conventional replica method to a supersymmetric variant by choosing the number of valence quarks to be negative.

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页码：1 / 7

页数：7

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