Pumping current of a Luttinger liquid with finite length

We study transport properties in a Tomonaga-Luttinger liquid in the presence of two timedependent point like weak impurities, taking into account finite-length effects. By employing analytical methods and performing a perturbation theory, we compute the backscattering pumping current (I<sub>bs...

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Autores principales: Franchino Viñas, Sebastián A., González Pisani, Pablo Andrés, Salvay, Mariano
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2012
Materias:
Física
Ciencias Exactas
Strongly correlated electrons
Luttinger liquid
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/96599
https://ri.conicet.gov.ar/11336/76538
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-96599
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Ciencias Exactas
Strongly correlated electrons
Luttinger liquid
spellingShingle Física
Ciencias Exactas
Strongly correlated electrons
Luttinger liquid
Franchino Viñas, Sebastián A.
González Pisani, Pablo Andrés
Salvay, Mariano
Pumping current of a Luttinger liquid with finite length
topic_facet Física
Ciencias Exactas
Strongly correlated electrons
Luttinger liquid
description We study transport properties in a Tomonaga-Luttinger liquid in the presence of two timedependent point like weak impurities, taking into account finite-length effects. By employing analytical methods and performing a perturbation theory, we compute the backscattering pumping current (I<sub>bs</sub>) in different regimes which can be established in relation to the oscillatory frequency of the impurities and to the frequency related to the length and the renormalized velocity (by the electron-electron interactions) of the charge density modes. We investigate the role played by the spatial position of the impurity potentials. We also show how the previous infinite length results for I<sub>bs</sub> are modified by the finite size of the system.
format Articulo
Preprint
author Franchino Viñas, Sebastián A.
González Pisani, Pablo Andrés
Salvay, Mariano
author_facet Franchino Viñas, Sebastián A.
González Pisani, Pablo Andrés
Salvay, Mariano
author_sort Franchino Viñas, Sebastián A.
title Pumping current of a Luttinger liquid with finite length
title_short Pumping current of a Luttinger liquid with finite length
title_full Pumping current of a Luttinger liquid with finite length
title_fullStr Pumping current of a Luttinger liquid with finite length
title_full_unstemmed Pumping current of a Luttinger liquid with finite length
title_sort pumping current of a luttinger liquid with finite length
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/96599
https://ri.conicet.gov.ar/11336/76538
work_keys_str_mv AT franchinovinassebastiana pumpingcurrentofaluttingerliquidwithfinitelength
AT gonzalezpisanipabloandres pumpingcurrentofaluttingerliquidwithfinitelength
AT salvaymariano pumpingcurrentofaluttingerliquidwithfinitelength
bdutipo_str Repositorios
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