Exact thermodynamics of the double sinh-Gordon theory in 1+1 dimensions

Khare, Avinash ; Habib, Salman ; Saxena, Avadh (1997) Exact thermodynamics of the double sinh-Gordon theory in 1+1 dimensions Physical Review Letters, 79 (20). pp. 3797-3801. ISSN 0031-9007

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Official URL: http://prl.aps.org/abstract/PRL/v79/i20/p3797_1

Related URL: http://dx.doi.org/10.1103/PhysRevLett.79.3797

Abstract

We study the classical thermodynamics of a (1+1)-dimensional double-well sinh-Gordon theory. Remarkably, the Schrödinger-like equation resulting from the transfer integral method is quasi-exactly solvable at several temperatures. This allows exact calculation of the partition function and some correlation functions above and below the short-range order ("kink") transition, in striking agreement with high resolution Langevin simulations. Interesting connections with the Landau-Ginzburg and double sine-Gordon models are also established.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:82055
Deposited On:09 Feb 2012 05:11
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