Localized - delocalized electron quantum phase transitions

Autor:	Gantmakher, V. F., Dolgopolov, V. T.
Rok vydání:	2008
Předmět:	Condensed Matter - Disordered Systems and Neural Networks Condensed Matter - Statistical Mechanics
Zdroj:	Physics - Uspekhi, 51, 1 (2008)
Druh dokumentu:	Working Paper
DOI:	10.1070/PU2008v051n01ABEH006471
Popis:	Metal--insulator transitions and transitions between different quantum Hall liquids are used to describe the physical ideas forming the basis of quantum phase transitions and the methods of application of theoretical results in processing experimental data. The following two theoretical schemes are discussed and compared: the general theory of quantum phase transitions, which has been developed according to the theory of thermodynamic phase transitions and relies on the concept of a partition function, and a theory which is based on a scaling hypothesis and the renormalization-group concept borrowed from quantum electrodynamics, with the results formulated in terms of flow diagrams. Comment: 27 pages, 20 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0803.3509 Zobrazit plný text záznamu View this record from Arxiv