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Dynamic robustness of endoreversible Carnot refrigerator working in the maximum performance per cycle time

NieDepartment of Physics, Nanchang University, Nanchang, 330031, ChinaJizhou He AuthorsSearch for Ke Lü in:Nature Research journals • PubMed • Google Scholar Search for Wenjie Nie in:Nature Research journals ... reviewed the manuscript and discussed the results and edited the manuscript. Competing Interests The authors declare no competing interests. Corresponding author Correspondence to Wenjie Nie. Rights

Ground-state cooling of a mechanical oscillator in a hybrid optomechanical system including an atomic ensemble

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...

Transparency and tunable slow and fast light in a nonlinear optomechanical cavity

We investigate theoretically the optical response of the output field and the tunable slow and fast light in a nonlinear optomechanical cavity with a degenerate optical parametric amplifier (OPA) and a higher order excited atomic ensemble. Studies show that the higher-order-excitation atom which is similar to the degenerate OPA that acts as a nonlinear medium, induces an...