FREE-ENERGY COST FOR ULTRAMETRICITY VIOLATIONS IN SPIN-GLASSES

被引：13

作者：

FRANZ, S

PARISI, G

VIRASORO, MA

机构：

[1] UNIV ROMA TOR VERGATA,DIPARTIMENTO FIS,I-00173 ROME,ITALY

[2] INFN,SEZ ROMA 2,ROME,ITALY

[3] UNIV ROMA LA SAPIENZA 1,DIPARTIMENTO FIS,I-00185 ROME,ITALY

[4] INFN,SEZ ROMA 1,ROME,ITALY

来源：

EUROPHYSICS LETTERS | 1993年 / 22卷 / 06期

关键词：

D O I：

10.1209/0295-5075/22/6/002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We apply the technique introduced in a previous paper, to study the violation of ultrametricity in a Spin Glass model. We consider 3 real replicas of a Spin Glass near the glassy temperature, constrained in such a way that their overlaps violate ultrametricity, We compute the free energy of such a system and find that the additional free energy required by the constraint is extensive (proportional to N). This result is likely to be independent of the model chosen, and to be a general feature in Mean-Field Spin Glass systems.

引用

页码：405 / 411

页数：7