Correlation Inequalities for the Quantum XY Model
نویسندگان
چکیده
منابع مشابه
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.
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15 صفحه اولCorrelation Inequalities for Quantum Spin Systems with Quenched Centered Disorder
Quantum spin system with quenched randomness are both important and theoretically challenging. They are widely used as models for metallic alloys in condensed matter physics, see [2] for a review. They are also important in combinatorial optimization problems especially in relation to quantum annealing procedures [3] and quantum error correcting codes [4]. One approach to studying such macrosco...
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ژورنال
عنوان ژورنال: Journal of Statistical Physics
سال: 2016
ISSN: 0022-4715,1572-9613
DOI: 10.1007/s10955-016-1580-2