Misc,

Fast optical cooling of nanomechanical cantilever with the dynamical Zeeman effect

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(Jul 15, 2013)

Abstract

We propose an efficient optical Stark shift-like cooling scheme for a cantilever with a nitrogen-vacancy center attached in a non-uniform magnetic field using dynamical Zeeman effect. In our scheme, the Zeeman effect combined with the quantum interference effect enhances the desired cooling transition and suppresses the undesired heating transitions. As a result, the cantilever can be cooled down to nearly the vibrational ground state under realistic experimental conditions within short time. The scheme can be reduced to the cooling approach using electromagnetically induced transparency under special conditions.

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