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.


Published in:
Physica Status Solidi B-Basic Research, 221, 1, 323-329
Year:
2000
ISSN:
0370-1972
Note:
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
Cited References:
ALTMANN SL, 1994, POINT GROUP THEORY T
DUPERTUIS MA, UNPUB IMPACT LOW SYM
DUPERTUIS MA, 2000, PHYS STATUS SOLIDI A, V178, P221
HAUG H, 1993, QUANTUM THEORY OPTIC
KOSTER GF, 1963, PROPERTIES 32 POINT
ROSSI F, 1999, J PHYS-CONDENS MAT, V11, P5969
WIGNER EP, 1959, GORUP THEOY ITS APPL
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 Record created 2007-08-31, last modified 2018-03-17


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