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

I.P. Takov

Physica A: Statistical Mechanics and its Applications, 2001, vol. 292, issue 1, 259-267

Abstract: 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.

Keywords: Quantum critical phenomena; Critical behaviour; Renormalization group; Disorder effects (search for similar items in EconPapers)
Date: 2001
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:292:y:2001:i:1:p:259-267

DOI: 10.1016/S0378-4371(00)00485-4

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