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Mechanical Lamb-shift analogue for the Cooper-pair box

A. D. Armour, M. P. Blencowe, K. C. Schwab

cond-mat.mes-hallarXiv:cond-mat/0109207

Abstract

We estimate the correction to the Cooper-pair box energy level splitting due to the quantum motion of a coupled micromechanical gate electrode. While the correction due to zero-point motion is very small, it should be possible to observe thermal motion-induced corrections to the photon-assisted tunneling current.

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