Dark-state laser cooling of a trapped ion using standing waves

Abstract

We propose a dark-state cooling scheme of trapped ion systems using standing waves in the Lamb-Dicke limit. By exploiting the property of standing waves, the heating effects caused by the carrier and the blue sideband transitions vanish and lower final phonon number can be achieved. Different from other dark-state cooling schemes, our scheme is more robust under the fluctuations of laser intensities.