Laser cooling of high temperature oscillator by multi-level system

Abstract

We study the laser cooling of a mechanical oscillator through the coupling with a dissipative three-level system. Under a background temperature beyond the Lamb-Dicke regime, we extend the standard cooling analysis by separately studying the classical motion and the quantum dynamics of the oscillator. In Ladder-system cooling, the cooling rate degrades by orders of magnitude at large classical motion. This phenomenon causes a critical transition of the final temperature at a hot background. In stark contrast, electromagnetic-induced-transparency (EIT) cooling with a $\Lambda$-system produces significant negative cooling rate at high motional excitation. At steady state, the oscillator could exhibit both cooling and lasing behaviours. We argue that a successful EIT cooling requires either a poor quality oscillator to suppress the lasing effect, or terminating the cooling process at a transient stage.

References in corpus (7)

• Sideband Cooling Micromechanical Motion to the Quantum Ground State
• Quantum Theory of Cavity-Assisted Sideband Cooling of Mechanical Motion
• Theory of ground state cooling of a mechanical oscillator using dynamical back-action
• Continuous mode cooling and phonon routers for phononic quantum networks
• Phonon Cooling and Lasing with Nitrogen-Vacancy Centers in Diamond
• EIT ground-state cooling of long ion strings
• Ground state cooling of a nanomechanical resonator via a Cooper pair box qubit

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• Universal Continuous Variable Quantum Computation Without Cooling
• Cavity-free quantum optomechanical cooling by atom-modulated radiation
• Dynamics of a quantum oscillator coupled with a three-level Lambda-type emitter
• Efficient Three-Dimensional Sub-Doppler Cooling of ${}^{40}$Ca${}^{+}$ in a Penning Trap