Ground-State Cooling and High-Fidelity Quantum Transduction via Parametrically Driven Bad-Cavity Optomechanics

被引：64

作者：

Lau, Hoi-Kwan ^{[1
]}

Clerk, Aashish A. ^{[1
]}

机构：

[1] Univ Chicago, Pritzker Sch Mol Engn, 5640 South Ellis Ave, Chicago, IL 60637 USA

来源：

PHYSICAL REVIEW LETTERS | 2020年 / 124卷 / 10期

关键词：

CONVERSION; MICROWAVE; SYSTEM;

D O I：

10.1103/PhysRevLett.124.103602

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Optomechanical couplings involve both beam splitter and two-mode-squeezing types of interactions. While the former underlies the utility of many applications, the latter creates unwanted excitations and is usually detrimental. In this Letter, we propose a simple but powerful method based on cavity parametric driving to suppress the unwanted excitation that does not require working with a deeply sideband-resolved cavity. Our approach is based on a simple observation: as both the optomechanical two-mode-squeezing interaction and the cavity parametric drive induce squeezing transformations of the relevant photonic bath modes, they can be made to cancel one another. We illustrate how our method can cool a mechanical oscillator below the quantum backaction limit, and significantly suppress the output noise of a sideband-unresolved optomechanical transducer.

引用

页数：6

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