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Quantum critical effects in mean-field glassy systems
Ritort Farran, Fèlix
Universitat de Barcelona
We consider the effects of quantum fluctuations in mean-field quantum spin-glass models with pairwise interactions. We examine the nature of the quantum glass transition at zero temperature in a transverse field. In models (such as the random orthogonal model) where the classical phase transition is discontinuous an analysis using the static approximation reveals that the transition becomes continuous at zero temperature.
04-05-2010
Fluctuacions (Física)
Transformacions de fase (Física estadística)
Vidres de spin
Fluctuations (Physics)
Phase transformations (Statistical physics)
Spin glasses
(c) The American Physical Society, 1997
Artículo
The American Physical Society
         

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