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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