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]Full text not available from this repository.
|Item Type:||Pubblicazione in rivista scientifica|
|Uncontrolled Keywords:||quantum criticality, quenched disorder, crossover phenomena|
|Date Deposited:||21 Oct 2010 06:57|
|Last Modified:||30 Apr 2014 19:43|
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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