title: Entanglement and decoherence of a micromechanical resonator via coupling to a Cooper-pair box.
abstract: 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.
authors.affiliation: Blackett Laboratory, Imperial College of Science, Technology and Medicine, London SW7 2BW, United Kingdom.
authors.forename: A D
authors.initials: AD
authors.lastname: Armour
authors.forename: M P
authors.initials: MP
authors.lastname: Blencowe
authors.forename: K C
authors.initials: KC
authors.lastname: Schwab