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Updated: Feb 17, 2026

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
Published on: March 30, 2017
Ground-state cooling of a mechanical oscillator in a hybrid optomechanical system including an atomic ensemble
Wei Zeng1, Wenjie Nie1, Ling Li1
1Department of Applied Physics, East China Jiaotong University, Nanchang, 330013, China.
Abstract:
We investigate dynamical properties and the ground-state cooling of a mechanical oscillator in an optomechanical system coupling with an atomic ensemble. In this hybrid optomechanical system, an atomic ensemble which consists of two-level atoms couples with the cavity field. Here we consider the case where the atomic ensemble is in higher excitation. Studies show that the atom-field coupling strength can obviously influence the cooling process, and we can achieve the ground-state cooling of the mechanical oscillator by choosing the appropriate physical parameters of the system. Our cooling mechanism has potential applications in quantum information processing and procession measurement.
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