Phys. Rev. Lett. 88, 148301 (2002) [4 pages]Entanglement and Decoherence of a Micromechanical Resonator via Coupling to a Cooper-Pair BoxReceived 12 January 2002; published 20 March 2002 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. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.88.148301
DOI:
10.1103/PhysRevLett.88.148301
PACS:
85.85.+j, 03.65.Yz
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