Backscattering off a dynamical impurity in one-dimensional Fermi systems: a perturbative computation

We investigate the problem of backscattering off a time-dependent and spatially extended barrier in a one-dimensional noninteracting electron gas. By performing a perturbative expansion in the backscattering amplitude, we compute the total energy density of the system. We show how the free fermion s...

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Detalles Bibliográficos
Autores principales:	Naón, Carlos María, Salvay, Mariano J.
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2007
Materias:	Física Quantum tunnelling Physics Conductance Amplitude Fermi gamma-ray space telescope Condensed matter physics Quantum electrodynamics Computation Fermion Impurity Fermi gas
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/125843
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-125843
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 tunnelling Physics Conductance Amplitude Fermi gamma-ray space telescope Condensed matter physics Quantum electrodynamics Computation Fermion Impurity Fermi gas
spellingShingle	Física Quantum tunnelling Physics Conductance Amplitude Fermi gamma-ray space telescope Condensed matter physics Quantum electrodynamics Computation Fermion Impurity Fermi gas Naón, Carlos María Salvay, Mariano J. Backscattering off a dynamical impurity in one-dimensional Fermi systems: a perturbative computation
topic_facet	Física Quantum tunnelling Physics Conductance Amplitude Fermi gamma-ray space telescope Condensed matter physics Quantum electrodynamics Computation Fermion Impurity Fermi gas
description	We investigate the problem of backscattering off a time-dependent and spatially extended barrier in a one-dimensional noninteracting electron gas. By performing a perturbative expansion in the backscattering amplitude, we compute the total energy density of the system. We show how the free fermion spectrum and the conductance of the system are affected by the interplay between dynamical and geometrical properties of the impurity.
format	Articulo Articulo
author	Naón, Carlos María Salvay, Mariano J.
author_facet	Naón, Carlos María Salvay, Mariano J.
author_sort	Naón, Carlos María
title	Backscattering off a dynamical impurity in one-dimensional Fermi systems: a perturbative computation
title_short	Backscattering off a dynamical impurity in one-dimensional Fermi systems: a perturbative computation
title_full	Backscattering off a dynamical impurity in one-dimensional Fermi systems: a perturbative computation
title_fullStr	Backscattering off a dynamical impurity in one-dimensional Fermi systems: a perturbative computation
title_full_unstemmed	Backscattering off a dynamical impurity in one-dimensional Fermi systems: a perturbative computation
title_sort	backscattering off a dynamical impurity in one-dimensional fermi systems: a perturbative computation
publishDate	2007
url	http://sedici.unlp.edu.ar/handle/10915/125843
work_keys_str_mv	AT naoncarlosmaria backscatteringoffadynamicalimpurityinonedimensionalfermisystemsaperturbativecomputation AT salvaymarianoj backscatteringoffadynamicalimpurityinonedimensionalfermisystemsaperturbativecomputation
bdutipo_str	Repositorios
_version_	1764820452349313024

Backscattering off a dynamical impurity in one-dimensional Fermi systems: a perturbative computation

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