Theory of cavity-assisted microwave cooling of polar molecules

Abstract

We analyze cavity-assisted cooling schemes for polar molecules in the microwave domain, where molecules are excited on a rotational transition and energy is dissipated via strong interactions with a lossy stripline cavity, as recently proposed by A. Andre et al., Nature Physics 2, 636 (2006). We identify the dominant cooling and heating mechanisms in this setup and study cooling rates and final temperatures in various parameter regimes. In particular we analyze the effects of a finite environment temperature on the cooling efficiency, and find minimal temperature and optimized cooling rate in the strong drive regime. Further we discuss the trade-off between efficiency of cavity cooling and robustness with respect to ubiquitous imperfections in a realistic experimental setup, such as anharmonicity of the trapping potential.

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Cited by in corpus (11)

• Manipulation of Molecules with Electromagnetic Fields
• Hybrid quantum devices and quantum engineering
• Cooling of mechanical motion with a two level system: the high temperature regime
• Cavity cooling of an ensemble spin system
• Hyperfine structure in the microwave spectra of ultracold polar molecules
• Quantum simulation of many-body spin interactions with ultracold polar molecules
• Cavity cooling to the ground state of an ensemble quantum system
• Comparing cavity and ordinary laser cooling within the Lamb-Dicke regime
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