Fundamental collapse of the exciton-exciton effective scattering (Articolo in rivista)

Type
Label
  • Fundamental collapse of the exciton-exciton effective scattering (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.82.075327 (literal)
Alternative label
  • Pilozzi L. (1); Combescot M. (2); Betbeder-Matibet O. (2); D'Andrea A. (1) (2010)
    Fundamental collapse of the exciton-exciton effective scattering
    in Physical review. B, Condensed matter and materials physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Pilozzi L. (1); Combescot M. (2); Betbeder-Matibet O. (2); D'Andrea A. (1) (literal)
Pagina inizio
  • 075327 (literal)
Pagina fine
  • 075338 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://link.aps.org/doi/10.1103/PhysRevB.82.075327 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 82 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • American Physical Society. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 11 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 7 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1) Istituto dei Sistemi Complessi, CNR, CP 10, Monterotondo Stazione, Roma I-00016, Italy; 2) Institut des NanoSciences de Paris, CNRS-Université Pierre et Marie Curie, 140 rue de Lourmel, 75015 Paris, France (literal)
Titolo
  • Fundamental collapse of the exciton-exciton effective scattering (literal)
Abstract
  • The exciton-exciton effective scattering which rules the time evolution of two excitons is studied as a function of initial momentum difference, scattering angle, and electron-to-hole mass ratio. We show that this effective scattering can collapse for energy-conserving configurations provided that the difference between the two initial exciton momenta is larger than a threshold value. Sizeable scatterings then exist in the forward direction only. We even find that, for an electron-to-hole mass ratio close to 1/2, the exciton-exciton effective scattering stays close to zero in all directions when the difference between the initial exciton momenta has a very specific value. This unexpected but quite remarkable collapse comes from tricky compensation between direct and exchange Coulomb processes which originates from the fundamental undistinguishability of the exciton fermionic components. (literal)
Prodotto di
Autore CNR

Incoming links:


Autore CNR di
Prodotto
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
data.CNR.it