Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/328311
Type: Artigo
Title: Topological Structures In The Husimi Flow
Topological structures in the Husimi flow
Author: Veronez, M.
Aguiar, M. A. M. de
Abstract: We study the topological properties of the quantum phase space current in the Husimi representation, focusing on the dynamical differences, induced by these properties, between the quantum and the classical flows. We show that the zeros of the Husimi function are stagnation points of the current and have a nonzero topological charge. Due to overall charge conservation, new stagnation points with opposite charge appear in pairs in the Husimi current and they have important roles in dynamical processes. As an example we show the topological effect of the zeros in the transmission rate of a particle through a potential barrier.
We study the topological properties of the quantum phase space current in the Husimi representation, focusing on the dynamical differences, induced by these properties, between the quantum and the classical flows. We show that the zeros of the Husimi function are stagnation points of the current and have a nonzero topological charge. Due to overall charge conservation, new stagnation points with opposite charge appear in pairs in the Husimi current and they have important roles in dynamical processes. As an example we show the topological effect of the zeros in the transmission rate of a particle through a potential barrier.
Subject: Quantum Mechanics
Phase Space
Husimi Function
Quantum Current
Quantum Tunneling
Mecânica quântica, Espaços generalizados, Tunelamento (Física)
Country: Reino Unido
Editor: Institute of Physics Publishing
Citation: Journal Of Physics A-mathematical And Theoretical. Iop Publishing Ltd, v. 49, p. , 2016.
Rights: fechado
Identifier DOI: 10.1088/1751-8113/49/6/065301
Address: http://iopscience.iop.org/article/10.1088/1751-8113/49/6/065301/meta
Date Issue: 2016
Appears in Collections:IFGW - Artigos e Outros Documentos

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