Rare regions and annealed disorder in quantum phase transitions

Details Rare regions and annealed disorder in quantum phase transitions Rare regions and annealed disorder in quantum phase transitions

1999-07-25

arxiv.org/abs/cond-mat/9907384v2

Ann. Phys. (Leipzig) vol. 8 Spec. Issue, pp. SI--185-SI--188 (1999)

Physics

Condensed Matter

Statistical Mechanics

4 pp., LaTeX, 1 eps fig., requires annalen.cls (included), Contribution to Localisation 99, final version as published

Scientific paper

The Griffiths region that is due to rare regions and the resulting local moments in disordered itinerant quantum magnets, and its influence on the critical behavior, is considered within the framework of an effective field theory. It is shown that the local moments can be described in terms of static, annealed disorder, and the physical consequences of this description are discussed.

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