University of Birmingham > Talks@bham > Condensed Matter Physics Seminars > Excitonic superfluidity (or not) in quantum Hall bilayers

Excitonic superfluidity (or not) in quantum Hall bilayers

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  • UserDr. Derek Lee, Imperial College, London
  • ClockFriday 06 November 2009, 14:00-15:00
  • HousePhysics East 217.

If you have a question about this talk, please contact Elizabeth Blackburn.

Electrons and holes on opposite sides of a double quantum well attract each other but a bound state does not form unless the interaction is strong compared to the kinetic energy. This can be achieved in the quantum Hall regime where electrons occupy narrow Landau bands. The condensation of these excitons is believed to give rise to dissipationless flow for currents in opposite directions in the two wells. I will review the status of experimental evidence and discuss theoretical models.

This talk is part of the Condensed Matter Physics Seminars series.

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