Consequences of low symmetry in quantum wires: Exciton degeneracies and quasi-equilibrium high-density regime
We analyze the role of the confinement potential symmetry on the optical properties of quantum wires in the high-density regime. Within the Hartree-Fock approximation we go beyond a global group-theoretical analysis and analyse the structural details of the symmetrized set of microscopic polarization equations including band-mixing. We show that neglecting conduction band mixing leads to further degeneracies of the quantum wire excitonic fine structure. We also find that the decoupling of the symmetrized polarization equations is persistent in the quasi-equilibrium high-density regime.
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Swiss Fed Inst Technol, EPFL, Inst Micro & Optoelect, Dept Phys, CH-1015 Lausanne, Switzerland. Dupertuis, MA, Swiss Fed Inst Technol, EPFL, Inst Micro & Optoelect, Dept Phys, CH-1015 Lausanne, Switzerland.
ISI Document Delivery No.: 362PZ
Times Cited: 3
Cited Reference Count: 7
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Record created on 2007-08-31, modified on 2016-08-08