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

A. D. Armour·M. P. Blencowe·K. C. Schwab
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Abstract

We analyse the quantum dynamics of a micromechanical resonator capacitively coupled to a Cooper 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 environmentally-induced decoherence of the resonator superposition state.

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A. D. Armour, M. P. Blencowe, K. C. Schwab. 2001-12-20. Entanglement and decoherence of a micromechanical resonator via coupling to a Cooper box. https://doi.org/10.1103/physrevlett.88.148301

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