Quantum critical behaviour in systems with quenched long-range correlated impurities

The one-loop renormalization-group equations for Bose systems with quenched long-range correlated impurities are derived and analyzed with the help of three small expansion parameters. The classical-to-quantum crossover in a wide class of systems with long-range impurity correlations is established and the critical exponents are calculated within the one-loop expansion.

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Year of publication:	2001
Authors:	Takov, I.P.
Published in:	Physica A: Statistical Mechanics and its Applications. - Elsevier, ISSN 0378-4371. - Vol. 292.2001, 1, p. 259-267
Publisher:	Elsevier
Subject:	Quantum critical phenomena \| Critical behaviour \| Renormalization group \| Disorder effects

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Type of publication:	Article
Source:	RePEc - Research Papers in Economics

Persistent link: https://www.econbiz.de/10010588665