Mode condensation in a hierarchical system

Deepak Kumar, ; Kamlesh, Kamlesh (1986) Mode condensation in a hierarchical system Physical Review Letters, 57 (24). pp. 3101-3104. ISSN 0031-9007

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Official URL: http://prl.aps.org/abstract/PRL/v57/i24/p3101_1

Related URL: http://dx.doi.org/10.1103/PhysRevLett.57.3101

Abstract

A spherical model of Ising spins, placed on sites that are arranged in a cluster hierarchy, is studied. For the ferromagnetic transition, the critical exponents are found to have nonuniversal values in a certain range of system parameters, while they assume classical values in another range. Correlation functions show a behavior which is very different from the uniform systems. For antiferromagnetic interactions, the system has no transition, which is related to the fact that condensation cannot occur in localized modes.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:9894
Deposited On:02 Nov 2010 10:30
Last Modified:31 May 2011 09:48

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