COMMENT ON THE SLAC RENORMALIZATION-GROUP APPROACH TO THE ISING CHAIN IN A TRANSVERSE MAGNETIC-FIELD

被引：39

作者：

FERNANDEZPACHECO, A ^{[1
]}

机构：

[1] UNIV SARAGOSSA,DEPT FIS NUCL,SARAGOSSA,SPAIN

来源：

PHYSICAL REVIEW D | 1979年 / 19卷 / 10期

关键词：

D O I：

10.1103/PhysRevD.19.3173

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It is shown that the critical parameters obtained for the Ising chain in a transverse field by using the SLAC naive renormalization-group approach can be easily and considerably improved. This is obtained after doing a convenient trick so that site and link terms of the Hamiltonian of the theory are treated in a symmetric way. In particular, the critical coupling constant and the critical thermal exponent obtained with our method are the exact known results of this model. © 1979 The American Physical Society.

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页码：3173 / 3175

页数：3

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