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Correlation inequalities for the quantum XY model

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Benassi, Costanza, Lees, Benjamin and Ueltschi, Daniel (2016) Correlation inequalities for the quantum XY model. Journal of Statistical Physics, 164 (5). pp. 1157-1166. doi:10.1007/s10955-016-1580-2 ISSN 0022-4715.

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Official URL: http://dx.doi.org/10.1007/s10955-016-1580-2

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Abstract

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.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science, Engineering and Medicine > Science > Mathematics
Library of Congress Subject Headings (LCSH): Quantum systems, Rotational motion
Journal or Publication Title: Journal of Statistical Physics
Publisher: Springer New York LLC
ISSN: 0022-4715
Official Date: September 2016
Dates:
DateEvent
September 2016Published
11 July 2016Available
30 June 2016Accepted
11 April 2016Submitted
Volume: 164
Number: 5
Page Range: pp. 1157-1166
DOI: 10.1007/s10955-016-1580-2
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access (Creative Commons)
Date of first compliant deposit: 13 September 2016
Date of first compliant Open Access: 13 September 2016
Funder: Engineering and Physical Sciences Research Council (EPSRC)
Grant number: EP/HO23364/1
Adapted As:

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