Response functions in multicomponent Luttinger liquids (Articolo in rivista)

Type
Label
  • Response functions in multicomponent Luttinger liquids (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1088/1742-5468/2012/12/P12020 (literal)
Alternative label
  • Orignac, E.; Citro, R. (2012)
    Response functions in multicomponent Luttinger liquids
    in Journal of statistical mechanics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Orignac, E.; Citro, R. (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 23 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Ecole Normale Superieure (ENS) Lyon; Spin CNR UO Salerno; University of Salerno (literal)
Titolo
  • Response functions in multicomponent Luttinger liquids (literal)
Abstract
  • We derive an analytic expression for the zero temperature Fourier transform of the density-density correlation function of a multicomponent Luttinger liquid with different velocities. By employing a Schwinger identity and a generalized Feynman identity exact integral expressions are derived,and approximate analytical forms are given for frequencies close to each component singularity. We find power-law singularities and compute the corresponding exponents. Numerical results are shown for N - 3 components and implications for experiments on cold atoms are discussed. (literal)
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