Caramico D'Auria, Alvaro (2009) Disorder-induced quantum-Griffiths-like features from a non-conventional renormalization group analysis near four dimensions. [Pubblicazione in rivista scientifica]
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Official URL: www.elsevier.com/locate/physa
Item Type: | Pubblicazione in rivista scientifica | ||||
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Lingua: | English | ||||
Title: | Disorder-induced quantum-Griffiths-like features from a non-conventional renormalization group analysis near four dimensions. | ||||
Creators: |
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Autore/i: | I. RABUFFO, M.T. MERCALDO, A.CARAMICO D'AURIA, L. DE CESARE | ||||
Date: | 2009 | ||||
Number of Pages: | 12 | ||||
Department: | Scienze fisiche | ||||
Identification Number: | 10.1016/j.physa.2009.07.033 | ||||
Official URL: | www.elsevier.com/locate/physa | ||||
Journal or Publication Title: | PHYSICA. A | ||||
Date: | 2009 | ||||
Volume: | 388 | ||||
Page Range: | pp. 4523-4534 | ||||
Number of Pages: | 12 | ||||
Uncontrolled Keywords: | quantum criticality, quenched disorder, crossover phenomena | ||||
Identification Number: | 10.1016/j.physa.2009.07.033 | ||||
Date Deposited: | 21 Oct 2010 06:57 | ||||
Last Modified: | 30 Apr 2014 19:43 | ||||
URI: | http://www.fedoa.unina.it/id/eprint/7489 |
Abstract
We investigate the role played by symmetry conserving quenched disorder on quantum criticality of a variety of d-dimensional systems with a continuous symmetry order parameter.We employ a non standard procedure which combines a preliminary reduction to an effective classical problem and a successive renormalization group treatment. We find a quantum critical point scenario exhibiting unusual features, which remind us of some predictions of the quantum Griffiths phase model
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