Entanglement and Decoherence of a Micromechanical Resonator via Coupling to a Cooper-Pair Box

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Entanglement and decoherence of a micromechanical resonator via coupling to a Cooper-pair box.

We analyze the quantum dynamics of a micromechanical resonator capacitively coupled to a Cooper-pair box. With appropriate quantum state control of the Cooper box, the resonator can be driven into a superposition of spatially separated states. The Cooper box can also be used to probe the decay of the resonator superposition state due to environmental decoherence.

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Entanglement and decoherence of a micromechanical resonator via coupling to a Cooper box

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ژورنال

عنوان ژورنال: Physical Review Letters

سال: 2002

ISSN: 0031-9007,1079-7114

DOI: 10.1103/physrevlett.88.148301