Suppression of superfluidity of exciton-polaritons by magnetic field
Por:
Rubo Y.G., Kavokin A.V., Shelykh I.A.
Publicada:
1 ene 2006
Resumen:
We show that the properties of exciton-polariton condensate in a semiconductor microcavity are strongly sensitive to the external magnetic field normal to the cavity plane. In particular, the superfluidity is suppressed at a critical magnetic field Bc proportional to the polariton concentration. For B < Bc the Zeeman splitting of polaritons is exactly compensated by polariton-polariton interactions in the elliptically polarized condensate. Above the critical point, the spin degeneracy is lifted and the superfluidity reappears again on the circularly polarized lower polariton branch. © 2006 Elsevier B.V. All rights reserved.
Filiaciones:
Rubo Y.G.:
Centro de Investigación en Energía, Universidad Nacional Autónoma de México, Temixco, 62580 Morelos, Mexico
Kavokin A.V.:
Physics and Astronomy School, University of Southampton, Highfield, SO17 1BJ Southampton, United Kingdom
Shelykh I.A.:
Physics and Astronomy School, University of Southampton, Highfield, SO17 1BJ Southampton, United Kingdom
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