Polariton condensate coherence in planar microcavities in a magnetic field |
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Authors: | A. V. Chernenko A. Rahimi-lman J. Fischer M. Amthor C. Schneider S. Reitzenstein A. Forchel S. Hoefling |
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Affiliation: | 1.Solid State Physics Institute,Russian Academy of Sciences,Chernogolovka, Moscow oblast,Russia;2.TechnischePhysik, Wilhelm Conrad Roentgen Research Center for Complex Material Systems,Universitat Wuerzburg,Wuerzburg,Germany;3.Department of Physics and Materials Sciences Center,Philipps-Universitat Marburg,Marburg,Germany;4.Institut fur Festkoerperphysik,Technische Universitat Berlin,Berlin,Germany |
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Abstract: | In planar GaAs microcavities in a magnetic field up to 5 T perpendicular to the structure growth plane, under conditions of resonant pulsed pumping to a point close to the inflection point of the lower dispersion curve, Zeeman splitting of the spin sublevels of the polariton condensate is observed. This is accompanied by a significant change in the degree of circular polarization and the second-order correlator g2(0). It is found that the correlator is different for the spin sublevels of the polariton condensate, split in a magnetic field. In particular, correlator measurements indicate different condensation thresholds for the spin sublevels. The correlator values initially differing in terms of the absence of a field increase, reach a maximum, and then decrease and become equal for different polarizations in a field of 5 T. |
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