ABSENCE OF SPONTANEOUS SYMMETRY-BREAKING ON FRACTAL LATTICES WITH (D)OVER-TILDE-LESS-THAN-OR-EQUAL-TO-2

被引：4

作者：

CASSI, D

机构：

[1] Istituto Nazionale di Fisica Nucleare, Gruppo Collegato di Parma, Dipartimento di Fisica, 43100 Parma, Viale delle Scienze

来源：

PHYSICA A | 1992年 / 191卷 / 1-4期

关键词：

D O I：

10.1016/0378-4371(92)90581-A

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We generalize the Mermin-Wagner theorem proving that classical O(n) and quantum Heisenberg ferromagnetic models with nearest neighbors interactions cannot have spontaneous magnetization at any finite temperature on fractal and disordered lattices whose spectral dimension is less or equal to 2, due to the infrared divergencies of the Gaussian models defined on them.

引用

页码：549 / 553

页数：5