Lower limit on the achievable temperature in resonator-based sideband cooling

  title={Lower limit on the achievable temperature in resonator-based sideband cooling},
  author={M. Grajcar and Sahel Ashhab and J. R. Johansson and Franco Nori},
  journal={Physical Review B},
A resonator with eigenfrequency ${\ensuremath{\omega}}_{r}$ can be effectively used as a cooler for another linear oscillator with a much smaller frequency ${\ensuremath{\omega}}_{m}⪡{\ensuremath{\omega}}_{r}$. A huge cooling effect, which could be used to cool a mechanical oscillator below the energy of quantum fluctuations, has been predicted by several authors. However, here we show that there is a lower limit ${T}^{\ensuremath{\ast}}$ on the achievable temperature, given by ${T… 

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