Manifestation of <Emphasis Type="Italic">PT</Emphasis> symmetry in the exciton spectra of quantum wells |
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| Authors: | V P Kochereshko L V Kotova I S Khakhalin R T Cox H Mariette R Andre H Bukari S V Ivanov |
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| Affiliation: | 1.Ioffe Institute,St. Petersburg,Russia;2.Institut Néel, CNRS/UJF 25,Grenoble Cedex 9,France |
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| Abstract: | The reflection and photoluminescence excitation spectra under circular polarization of the incident light are measured in wide quantum wells whose width is much larger than the exciton Bohr radius. It is found that, in the absence of a magnetic field, the relation between the intensities of even and odd absorption peaks is reversed upon reversal of the sign of circular polarization. |
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