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Correlated initial condition for an embedded process by time partitioning

SYSNO ASEP	0347554
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Correlated initial condition for an embedded process by time partitioning
Author(s)	Velický, Bedřich (FZU-D)_{RID, ORCID} Kalvová, Anděla (FZU-D)_{RID, ORCID} Špička, Václav (FZU-D)_{RID, ORCID}
Source Title	Physical Review. B - ISSN 1098-0121 Roč. 81, č. 23 (2010), 235116/1-235116/12
Number of pages	12 s.
Language	eng - English
Country	US - United States
Keywords	non-equilibrium ; Initial conditions ; decay of correlations ; Green's functions ; quantum transport equations
Subject RIV	BM - Solid Matter Physics ; Magnetism
R&D Projects	GA202/08/0361 GA ČR - Czech Science Foundation (CSF)
CEZ	AV0Z10100520 - FZU-D (2005-2011)
	AV0Z10100521 - FZU-D (2005-2011)
UT WOS	000289077400001
EID SCOPUS	77956312690
DOI	10.1103/PhysRevB.81.235116
Annotation	tudy of transients in the electron quantum transport by Non-Equilibrium Green's Functions (NGF) often requires an explicit inclusion of correlations at a finite initial time. For processes embedded in a host process, a universal treatment of the correlated initial conditions based on the formalism of partitioning in time allows to express their self-energy including the "irregular" correlation part in terms of the known properties of the host process. This unified formalism also yields the renormalized semi-group property for propagators and the reconstruction equations for the particle correlation function. The Bogolyubov principle of the decay of correlations then permits to build up a theory of quantum transport equations with finite time initial conditions.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2011

Number of the records: 1