Quantum quenches, linear response and superfluidity out of equilibrium (Articolo in rivista)

Type
Label
  • Quantum quenches, linear response and superfluidity out of equilibrium (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1209/0295-5075/107/30002 (literal)
Alternative label
  • Rossini D.[ 1,2 ]; Fazio R.[ 1,2,3 ]; Giovannetti V.[ 1,2 ]; Silva A.[ 4,5 ] (2014)
    Quantum quenches, linear response and superfluidity out of equilibrium
    in Europhysics letters (Online)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Rossini D.[ 1,2 ]; Fazio R.[ 1,2,3 ]; Giovannetti V.[ 1,2 ]; Silva A.[ 4,5 ] (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.scopus.com/inward/record.url?eid=2-s2.0-84905851663&partnerID=q2rCbXpz (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 107 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 3 (literal)
Note
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • [ 1 ] Scuola Normale Super Pisa, NEST, I-56126 Pisa, Italy [ 2 ] CNR, Ist Nanosci, I-56126 Pisa, Italy [ 3 ] Natl Univ Singapore, Ctr Quantum Technol, Singapore 117543, Singapore [ 4 ] SISSA, I-34136 Trieste, Italy [ 5 ] Abdus Salaam Int Ctr Theoret Phys, I-34151 Trieste, Italy (literal)
Titolo
  • Quantum quenches, linear response and superfluidity out of equilibrium (literal)
Abstract
  • By analysing the sensitivity to a twist in the boundary conditions of the stationary state attained by a many-body system long after a quantum quench, we extend the concepts of the helicity modulus and the stiffness to non-equilibrium situations. Using these generalised quantities, we characterise the out-of-equilibrium dynamics of hard-core bosons quenched to/from superfluid/insulating phases and show that qualitative new features emerge as compared to the equilibrium case. Our predictions can be tested in experiments with cold bosonic atoms confined in toroidal traps and subject to artificial gauge fields. © CopyrightEPLA, 2014. (literal)
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