Relaxation and thermalization after a quantum quench: Why localization is important (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Relaxation and thermalization after a quantum quench: Why localization is important (Articolo in rivista) (literal)

Anno

• 2013-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1103/PhysRevB.87.064201 (literal)

Alternative label

• Ziraldo, Simone; Santoro, Giuseppe E. (2013)
  Relaxation and thermalization after a quantum quench: Why localization is important
  in Physical review. B, Condensed matter and materials physics
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Ziraldo, Simone; Santoro, Giuseppe E. (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 87 (literal)

Rivista

• Physical review. B, Condensed matter and materials physics (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 13 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 6 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• International School for Advanced Studies; CNR IOM Democritos Natl Simulat Ctr; Abdus Salam International Centre for Theoretical Physics (literal)

Titolo

• Relaxation and thermalization after a quantum quench: Why localization is important (literal)

Abstract

• We study the unitary dynamics and the thermalization properties of free-fermion-like Hamiltonians after a sudden quantum quench, extending the results of S. Ziraldo et al. [Phys. Rev. Lett. 109, 247205 (2012)]. With analytical and numerical arguments, we show that the existence of a stationary state and its description with a generalized Gibbs ensemble (GGE) depend crucially on the observable considered (local versus extensive) and on the localization properties of the final Hamiltonian. We present results on two one-dimensional (1D) models, the disordered 1D fermionic chain with long-range hopping and the disordered Ising/XY spin chain. We analytically prove that, while time averages of one-body operators are perfectly reproduced by GGE (even for finite-size systems, if time integrals are extended beyond revivals), time averages of many-body operators might show clear deviations from the GGE prediction when disorder-induced localization of the eigenstates is at play. DOI: 10.1103/PhysRevB.87.064201 (literal)

Prodotto di

• MD.P06.025.001 Teoria, simulazione e progetto assistito dal calcolatore di materiali nanostrutturati (MD.P06.025.002) (Modulo)

Autore CNR

• GIUSEPPE ERNESTO SANTORO (Unità di personale esterno)

Incoming links:

Autore CNR di

• GIUSEPPE ERNESTO SANTORO (Unità di personale esterno)

Prodotto

• MD.P06.025.001 Teoria, simulazione e progetto assistito dal calcolatore di materiali nanostrutturati (MD.P06.025.002) (Modulo)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Physical review. B, Condensed matter and materials physics (Rivista)