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Published April 8, 2002 | Published + Submitted
Journal Article Open

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.

Additional Information

© 2002 The American Physical Society. Received 12 January 2002; published 20 March 2002. We thank R. Lifshitz and A. MacKinnon for useful discussions. This work was supported in part by the National Security Agency (NSA), the Advanced Research and Development Activity (ARDA), the Army Research Office (ARO), and the Engineering and Physical Sciences Research Council (EPSRC).

Attached Files

Published - ArmourPhysRevLett.88.148301.pdf

Submitted - 0112403.pdf


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August 19, 2023
October 19, 2023