Quantum quench and prethermalization dynamics in a two-dimensional fermi gas with long-range interactions

We study the effect of suddenly turning on a long-range interaction in a spinless Fermi gas in two dimensions. The short- to intermediate-time dynamics is described using the method of bosonization of the Fermi surface. The space-time dependence of the nonequilibrium fermion density matrix as well a...

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Detalles Bibliográficos
Autores principales:	Nessi, Emilio Nicolás, Iucci, Carlos Aníbal, Cazalilla, M. A.
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2014
Materias:	Física Physics Condensed matter physics Fermi gas
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/126233
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-126233
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Física Physics Condensed matter physics Fermi gas
spellingShingle	Física Physics Condensed matter physics Fermi gas Nessi, Emilio Nicolás Iucci, Carlos Aníbal Cazalilla, M. A. Quantum quench and prethermalization dynamics in a two-dimensional fermi gas with long-range interactions
topic_facet	Física Physics Condensed matter physics Fermi gas
description	We study the effect of suddenly turning on a long-range interaction in a spinless Fermi gas in two dimensions. The short- to intermediate-time dynamics is described using the method of bosonization of the Fermi surface. The space-time dependence of the nonequilibrium fermion density matrix as well as the evolution after the quench of the discontinuity at the Fermi momentum of the momentum distribution are computed. We find that the asymptotic state predicted by bosonization is consistent with the existence of a prethermalization plateau, which is also predicted by a perturbative approach in terms of the fermionic degrees of freedom. The bosonized representation, however, explicitly allows for the construction of the generalized Gibbs ensemble describing the prethermalized state.
format	Articulo Articulo
author	Nessi, Emilio Nicolás Iucci, Carlos Aníbal Cazalilla, M. A.
author_facet	Nessi, Emilio Nicolás Iucci, Carlos Aníbal Cazalilla, M. A.
author_sort	Nessi, Emilio Nicolás
title	Quantum quench and prethermalization dynamics in a two-dimensional fermi gas with long-range interactions
title_short	Quantum quench and prethermalization dynamics in a two-dimensional fermi gas with long-range interactions
title_full	Quantum quench and prethermalization dynamics in a two-dimensional fermi gas with long-range interactions
title_fullStr	Quantum quench and prethermalization dynamics in a two-dimensional fermi gas with long-range interactions
title_full_unstemmed	Quantum quench and prethermalization dynamics in a two-dimensional fermi gas with long-range interactions
title_sort	quantum quench and prethermalization dynamics in a two-dimensional fermi gas with long-range interactions
publishDate	2014
url	http://sedici.unlp.edu.ar/handle/10915/126233
work_keys_str_mv	AT nessiemilionicolas quantumquenchandprethermalizationdynamicsinatwodimensionalfermigaswithlongrangeinteractions AT iuccicarlosanibal quantumquenchandprethermalizationdynamicsinatwodimensionalfermigaswithlongrangeinteractions AT cazalillama quantumquenchandprethermalizationdynamicsinatwodimensionalfermigaswithlongrangeinteractions
bdutipo_str	Repositorios
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Quantum quench and prethermalization dynamics in a two-dimensional fermi gas with long-range interactions

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