Introduction to Nonlinear Phenomena in Superfluid Liquids and Bose-Einstein Condensates: Helium, Semiconductors and Graphene

Autor:	Berman, Oleg L., Kezerashvili, Roman Ya., Kolmakov, German V.
Rok vydání:	2011
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Strongly Correlated Electrons
Druh dokumentu:	Working Paper
DOI:	10.1080/00107514.2011.577566
Popis:	We review current understanding of the non-equilibrium dynamics of collective quantum systems. We describe an approach based on the Hamiltonian formulation of superfluid hydrodynamics. It is shown that, in the presence of constant energy pumping, the nonlinear coupling of fluctuations in the density and entropy strongly affects the nonequilibrium dynamics of the system. We use the results obtained to analyze the properties of out-of-equilibrium superfluid 4He and of exciton polariton Bose-Einstein condensates, both in semiconductor quantum wells and in graphene layers in presence of high magnetic field. Comment: 34 pages, 8 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1102.0600 Zobrazit plný text záznamu View this record from Arxiv