---
res:
  bibo_abstract:
  - We describe a novel three-pulse degenerate four-wave mixing configuration that
    permits the direct observation of the coherence between the σ+ and the σ− exciton
    states in a GaAs quantum well excited in a two-photon process. It is found that
    the phase coherence between the two single heavy-hole exciton states decays with
    a time constant that is considerably longer than the dephasing time of the coherence
    between these states and the ground state (interband coherence). All the experimental
    data are well described by numerical solutions of the optical Bloch equations
    for a phenomenological multilevel model.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Torsten
      foaf_name: Meier, Torsten
      foaf_surname: Meier
      foaf_workInfoHomepage: http://www.librecat.org/personId=344
    orcid: 0000-0001-8864-2072
  - foaf_Person:
      foaf_givenName: K.
      foaf_name: Bott, K.
      foaf_surname: Bott
  - foaf_Person:
      foaf_givenName: E.J.
      foaf_name: Mayer, E.J.
      foaf_surname: Mayer
  - foaf_Person:
      foaf_givenName: G.O.
      foaf_name: Smith, G.O.
      foaf_surname: Smith
  - foaf_Person:
      foaf_givenName: V.
      foaf_name: Heuckeroth, V.
      foaf_surname: Heuckeroth
  - foaf_Person:
      foaf_givenName: M.
      foaf_name: Hübner, M.
      foaf_surname: Hübner
  - foaf_Person:
      foaf_givenName: J.
      foaf_name: Kuhl, J.
      foaf_surname: Kuhl
  - foaf_Person:
      foaf_givenName: A.
      foaf_name: Schulze, A.
      foaf_surname: Schulze
  - foaf_Person:
      foaf_givenName: M.
      foaf_name: Lindberg, M.
      foaf_surname: Lindberg
  - foaf_Person:
      foaf_givenName: S.W.
      foaf_name: Koch, S.W.
      foaf_surname: Koch
  - foaf_Person:
      foaf_givenName: P.
      foaf_name: Thomas, P.
      foaf_surname: Thomas
  - foaf_Person:
      foaf_givenName: R.
      foaf_name: Hey, R.
      foaf_surname: Hey
  - foaf_Person:
      foaf_givenName: K.
      foaf_name: Ploog, K.
      foaf_surname: Ploog
  bibo_doi: 10.1364/JOSAB.13.001026
  bibo_issue: '5'
  bibo_volume: 13
  dct_date: 1996^xs_gYear
  dct_language: eng
  dct_publisher: Optica Publishing Group@
  dct_title: Dephasing of interacting heavy-hole and light-hole excitons in GaAs quantum
    wells@
...