Light-cone effect and supersonic correlations in one-and two-dimensional bosonic superfluids (Articolo in rivista)

Type

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

Label

• Light-cone effect and supersonic correlations in one-and two-dimensional bosonic superfluids (Articolo in rivista) (literal)

Anno

• 2014-01-01T00:00:00+01:00 (literal)

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

• 10.1103/PhysRevA.89.031602 (literal)

Alternative label

• Carleo, Giuseppe; Becca, Federico; Sanchez-Palencia, Laurent; Sorella, Sandro; Fabrizio, Michele (2014)
  Light-cone effect and supersonic correlations in one-and two-dimensional bosonic superfluids
  in Physical review. A
  (literal)

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

• Carleo, Giuseppe; Becca, Federico; Sanchez-Palencia, Laurent; Sorella, Sandro; Fabrizio, Michele (literal)

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

• 89 (literal)

Rivista

• Physical review. A (Rivista)

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

• 5 (literal)

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

• 3 (literal)

Note

• ISI Web of Science (WOS) (literal)

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

• Centre National de la Recherche Scientifique (CNRS); Consiglio Nazionale delle Ricerche (CNR); International School for Advanced Studies (literal)

Titolo

• Light-cone effect and supersonic correlations in one-and two-dimensional bosonic superfluids (literal)

Abstract

• We study the spreading of density-density correlations in Bose-Hubbard models after a quench of the interaction strength, using time-dependent variational Monte Carlo simulations. It gives access to unprecedented long propagation times and to dimensions higher than one. In both one and two dimensions, we find ballistic light-cone spreading of correlations and extract accurate values of the light-cone velocity in the superfluid regime. We show that the spreading of correlations is generally supersonic, with a light-cone propagating faster than sound modes but slower than the maximum group velocity of density excitations, except at the Mott transition, where all the characteristic velocities are equal. Further, we show that in two dimensions the correlation spreading is highly anisotropic and presents nontrivial interference effects. (literal)

Prodotto di

• MD.P06.024.001 Fluidi quantistici e sistemi elettronici fortemente correlati alla nanoscala e in dispositivi (MD.P06.024.002) (Modulo)

Autore CNR

• FEDERICO BECCA (Unità di personale interno)

Incoming links:

Autore CNR di

• FEDERICO BECCA (Unità di personale interno)

Prodotto

• MD.P06.024.001 Fluidi quantistici e sistemi elettronici fortemente correlati alla nanoscala e in dispositivi (MD.P06.024.002) (Modulo)

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

• Physical review. A (Rivista)