Correlation inequalities for the quantum XY model

Autor:	Benassi, Costanza, Lees, Benjamin, Ueltschi, Daniel
Rok vydání:	2015
Předmět:	Mathematical Physics 82B10 82B20 82B26
Zdroj:	J. Stat. Phys. 164, 1157-1166 (2016)
Druh dokumentu:	Working Paper
DOI:	10.1007/s10955-016-1580-2
Popis:	We show the positivity or negativity of truncated correlation functions in the quantum XY model with spin 1/2 (at any temperature) and spin 1 (in the ground state). These Griffiths-Ginibre inequalities of the second kind generalise an earlier result of Gallavotti. Comment: 9 pages
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1510.03215 Zobrazit plný text záznamu View this record from Arxiv