Quantum decoherence of excitons in a leaky cavity with quasimode

Details Quantum decoherence of excitons in a leaky cavity with quasimode Quantum decoherence of excitons in a leaky cavity with quasimode

2000-06-13

arxiv.org/abs/quant-ph/0006059v1

Physics

Quantum Physics

1 figure, 7 pages

Scientific paper

10.1103/PhysRevA.63.033816

For the excitons in the quantum well placed within a leaky cavity, the quantum decoherence of a mesoscopically superposed states is investigated based on the factorization theory for quantum dissipation. It is found that the coherence of the exciton superposition states will decrease in an oscillating form when the cavity field interacting with the exciton is of the form of quasimode. The effect of the thermal cavity fields on the quantum decoherence of the superposition states of the exciton is studied and it is observed that the higher the temperature of the environment is, the shorter the decoherence characteristic time is.

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