Quantum optics, excitons, and degenerate-state excitation in semiconductor nanostructures |
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Authors: | M. Kira S.W. Koch |
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Affiliation: | aDepartment of Physics and Material Sciences, Philipps-University Marburg, Renthof 5, D-35032 Marburg, Germany |
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Abstract: | Using a fully microscopic theory it is shown that quantum-optical excitation can be used to generate excitons in quantum-degenerate population states. For the example of a thermal source it is shown that resonant excitation directly converts photons into excitons with effectively no center of mass momentum. The generated quantum-degenerate state possesses long-range order, is very stable against perturbations, and should be observable via its unusual directional and density dependence in luminescence measurements. |
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Keywords: | Quantum optics Semiconductors Quantum optical spectroscopy Excitons Condensate |
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