Environmental induced renormalization effects in quantum Hall edge states due to 1/f noise and dissipation (Articolo in rivista)

Type
Label
  • Environmental induced renormalization effects in quantum Hall edge states due to 1/f noise and dissipation (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1088/1367-2630/14/9/093032 (literal)
Alternative label
  • A. Braggio1, D. Ferraro1,2,3, M. Carrega4, N. Magnoli2,3, M. Sassetti1,2 (2012)
    Environmental induced renormalization effects in quantum Hall edge states due to 1/f noise and dissipation
    in New journal of physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • A. Braggio1, D. Ferraro1,2,3, M. Carrega4, N. Magnoli2,3, M. Sassetti1,2 (literal)
Pagina inizio
  • 93032-1 (literal)
Pagina fine
  • 93032-14 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 14 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 14 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • - (literal)
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  • 1 CNR-SPIN, Via Dodecaneso 33, 16146, Genova, Italy. 2 Dipartimento di Fisica, Universit`a di Genova,Via Dodecaneso 33, 16146, Genova, Italy. 3 INFN, Sezione di Genova, Via Dodecaneso 33, 16146, Genova, Italy. 4 NEST, Istituto Nanoscienze - CNR and Scuola Normale Superiore, I-56126 Pisa, Italy. (literal)
Titolo
  • Environmental induced renormalization effects in quantum Hall edge states due to 1/f noise and dissipation (literal)
Abstract
  • We propose a general mechanism for renormalization of the tunneling exponents in edge states of the fractional quantum Hall effect. Mutual effects of the coupling with out-of-equilibrium 1/f noise and dissipation are considered both for the Laughlin sequence and for composite co- and counter-propagating edge states with Abelian or non-Abelian statistics. For states with counter-propagating modes we demonstrate the robustness of the proposed mechanism in the so called disorder-dominated phase. Prototypes of these states, such as \nu=2/3 and \nu=5/2, are discussed in detail and the rich phenomenology induced by the presence of a noisy environment is presented. The proposed mechanism justifies the strong renormalizations reported in many experimental observations carried out at low temperatures. We show how environmental effects could affect the relevance of the tunneling excitations, leading to important implications in particular for the \nu=5/2 case. (literal)
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