Effect of nonadiabatic switching of dynamic perturbations in one-dimensional Fermi systems

We study a two-dimensional (2D) fermionic quantum-field-theoretical model used to model 1D strongly correlated electrons in the presence of a time-dependent impurity that drives the system out of equilibrium. In contrast to previous investigations, we consider a dynamic barrier switched on at a fini...

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Detalles Bibliográficos
Autores principales: Naón, Carlos María, Salvay, Mariano J., Trobo, Marta Liliana
Formato: Articulo
Lenguaje:Inglés
Publicado: 2004
Materias:
Física
Quantum field theory
Physics
Well-defined
Electron
Perturbation (astronomy)
Fermi gamma-ray space telescope
Omega
Commutation
Electronic correlation
Quantum mechanics
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/126492
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-126492
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Quantum field theory
Physics
Well-defined
Electron
Perturbation (astronomy)
Fermi gamma-ray space telescope
Omega
Commutation
Electronic correlation
Quantum mechanics
spellingShingle Física
Quantum field theory
Physics
Well-defined
Electron
Perturbation (astronomy)
Fermi gamma-ray space telescope
Omega
Commutation
Electronic correlation
Quantum mechanics
Naón, Carlos María
Salvay, Mariano J.
Trobo, Marta Liliana
Effect of nonadiabatic switching of dynamic perturbations in one-dimensional Fermi systems
topic_facet Física
Quantum field theory
Physics
Well-defined
Electron
Perturbation (astronomy)
Fermi gamma-ray space telescope
Omega
Commutation
Electronic correlation
Quantum mechanics
description We study a two-dimensional (2D) fermionic quantum-field-theoretical model used to model 1D strongly correlated electrons in the presence of a time-dependent impurity that drives the system out of equilibrium. In contrast to previous investigations, we consider a dynamic barrier switched on at a finite time. We compute the total energy density of the system and establish two well defined regimes in terms of the relationship between the frequency of the time-dependent perturbation Ω and the electron energy ω . Finally, we derive a relaxation time t R such that for times shorter than tR the finite-time switching process is relevant.
format Articulo
Articulo
author Naón, Carlos María
Salvay, Mariano J.
Trobo, Marta Liliana
author_facet Naón, Carlos María
Salvay, Mariano J.
Trobo, Marta Liliana
author_sort Naón, Carlos María
title Effect of nonadiabatic switching of dynamic perturbations in one-dimensional Fermi systems
title_short Effect of nonadiabatic switching of dynamic perturbations in one-dimensional Fermi systems
title_full Effect of nonadiabatic switching of dynamic perturbations in one-dimensional Fermi systems
title_fullStr Effect of nonadiabatic switching of dynamic perturbations in one-dimensional Fermi systems
title_full_unstemmed Effect of nonadiabatic switching of dynamic perturbations in one-dimensional Fermi systems
title_sort effect of nonadiabatic switching of dynamic perturbations in one-dimensional fermi systems
publishDate 2004
url http://sedici.unlp.edu.ar/handle/10915/126492
work_keys_str_mv AT naoncarlosmaria effectofnonadiabaticswitchingofdynamicperturbationsinonedimensionalfermisystems
AT salvaymarianoj effectofnonadiabaticswitchingofdynamicperturbationsinonedimensionalfermisystems
AT trobomartaliliana effectofnonadiabaticswitchingofdynamicperturbationsinonedimensionalfermisystems
bdutipo_str Repositorios
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