Correlation Inequalities for the Quantum XY Model

Correlation Inequalities for the Quantum XY Model

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.

Bibliographic Details
Main Authors: Benassi, Costanza, Lees, Benjamin, Ueltschi, Daniel
Format: Online
Language:English
Published: Springer US 2016
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4977339/
id pubmed-4977339
recordtype oai_dc
spelling pubmed-49773392016-08-18 Correlation Inequalities for the Quantum XY Model Benassi, Costanza Lees, Benjamin Ueltschi, Daniel Article 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. Springer US 2016-07-11 2016 /pmc/articles/PMC4977339/ /pubmed/27546905 http://dx.doi.org/10.1007/s10955-016-1580-2 Text en © The Author(s) 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
repository_type Open Access Journal
institution_category Foreign Institution
institution US National Center for Biotechnology Information
building NCBI PubMed
collection Online Access
language English
format Online
author Benassi, Costanza
Lees, Benjamin
Ueltschi, Daniel
spellingShingle Benassi, Costanza
Lees, Benjamin
Ueltschi, Daniel
Correlation Inequalities for the Quantum XY Model
author_facet Benassi, Costanza
Lees, Benjamin
Ueltschi, Daniel
author_sort Benassi, Costanza
title Correlation Inequalities for the Quantum XY Model
title_short Correlation Inequalities for the Quantum XY Model
title_full Correlation Inequalities for the Quantum XY Model
title_fullStr Correlation Inequalities for the Quantum XY Model
title_full_unstemmed Correlation Inequalities for the Quantum XY Model
title_sort correlation inequalities for the quantum xy model
description 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.
publisher Springer US
publishDate 2016
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4977339/
_version_ 1613623625427976192

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