Condensation of interacting excitons in a microcavity

ORAL

Abstract

We consider the ground state of excitons interacting both via their Coulomb forces and via photons in a microcavity. We propose a mean field ansatz for the wavefunction, generalised from [NOZ1], that encapsulates the physics of both high and low densities. We discuss the phase diagram in regimes where the photon- or Coulomb-mediated coupling is dominant, and the excitations have a character that is either excitonic, or polaritonic, or an electron-hole plasma. \newline \newline [NOZ1] Comte, C. and Nozi\`{e}res, P., J. Physique \textbf{43}, 1069--1081 (1982)

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Authors

  • Anson Cheung

  • Ben Simons

    Cavendish Laboratory, University of Cambridge

  • Peter Littlewood

    Cambridge University, University of Cambridge, Cavendish Laboratory, TCM, University of Cambridge, Cambridge University, UK