Optical Absorption in Incoherent and Coherent States of a Quantum Hall System

  • Sergey Dickmann Institute of Solid State Physics of RAS
Keywords: Two-dimensional electron gas, quantum well, magnetic field, optical absorption, resonant Rayleigh reflection, magneto-exciton, cyclotron spin-flip excitation, Bose-Einstein condensation


In connection with recent studies of extremely long-living spin-cyclotron excitations (actually magneto-excitons) in a quantum Hall electron gas, we discuss contribution to the light-absorption related to the presence of a magneto-exciton ensemble in this purely electronic system. Since the weakly interacting excitations have to obey the Bose-Einstein statistics, one can expect appearance of a coherent state in the ensemble. A comparative analysis of both incoherent and coherent cases is done. Conditions for a phase transition from the incoherent state to the coherent one are discussed.


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but results in the same formula.

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How to Cite
Dickmann, S. (2018). Optical Absorption in Incoherent and Coherent States of a Quantum Hall System. JOURNAL OF ADVANCES IN PHYSICS, 15, 5917-5926. https://doi.org/10.24297/jap.v15i0.7844