Quantum decoherence of excitons in a leaky cavity with quasimode

Abstract

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.

1 figure, 7 pages

References in corpus (4)

• Approach to the semiconductor cavity QED in high-Q regimes with q-deformed boson
• Quantum computation with mesoscopic superposition states
• Continuous pumping and control of mesoscopic superposition state in a lossy QED cavity
• Decoherence effects on the generation of exciton entangled states in coupled quantum dots

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