Caramico D'Auria, Alvaro (2007) Unified static renormalization-group treatment of finite-temperature crossovers close to a quantum critical point. [Pubblicazione in rivista scientifica]

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Item Type: Pubblicazione in rivista scientifica
Uncontrolled Keywords: quantum phase transitions
Date Deposited: 20 Oct 2010 08:34
Last Modified: 30 Apr 2014 19:42


A non conventional Renormalization Group treatment close and below four dimensions is used to explore the low temperature properties of a wide class of systems in the influence domain of their quantum critical point. The approach consists in a preliminary averaging over quantum degrees of freedom and a successive employment of the Wilsonian RG trasformation to treat the resulting effective Ginzburg-Landau free energy functional. Thia allows a detailed study of criticality of the quantum systems.

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