Exciton condensate in semiconductor quantum well structures.

Details Exciton condensate in semiconductor quantum well structures. Exciton condensate in semiconductor quantum well structures.

1995-01-05

arxiv.org/abs/cond-mat/9501011v1

Physics

Condensed Matter

LaTex file, 11 pages, accepted by Phys. Rev. Lett.; Three figures available from zhu@physics.rutgers.edu.

Scientific paper

10.1103/PhysRevLett.74.1633

We propose that the exciton condensate may form in a well-controlled way in appropriately arranged semiconductor quantum well structures. The mean-field theory of Keldysh and Kopaev, exact in both the high density and the low density limits, is solved numerically to illustrate our proposal. The electron-hole pairing gap and the excitation spectrum of the exciton condensate are obtained. The energy scales of the condensate are substantial at higher densities. We discuss how such densities could be achieved experimentally by generating an effective pressure.

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