基态
谐振器
物理
马格农
磁致伸缩
哈密顿量(控制论)
凝聚态物理
磁场
磁阻尼
联轴节(管道)
量子
微波腔
微波食品加热
铁磁性
量子力学
光电子学
振动
工程类
机械工程
数学优化
数学
作者
Ming-Song Ding,Li Zheng,Chong Li
出处
期刊:Journal of The Optical Society of America B-optical Physics
[The Optical Society]
日期:2020-02-07
卷期号:37 (3): 627-627
被引量:25
摘要
Quantum manipulation of mechanical resonators has been widely applied in fundamental physics and quantum information processing. Among them, cooling the mechanical system to its quantum ground state is regarded as a key step. In this work, we propose a scheme which one can realize ground-state cooling of resonator in a cavity magnomechanical system. The system consists of a microwave cavity and a small ferromagnetic sphere, in which phonon-magnon coupling and cavity photon-magnon coupling can be achieved via magnetostrictive interaction and magnetic dipole interaction, respectively. After adiabatically eliminating the cavity mode, an effective Hamiltonian which consists of magnon and mechanical modes is obtained. Within experimentally feasible parameters, we demonstrate that the ground-state cooling of the magnomechanical resonator can be achieved by extra magnetic damping. Unlike optomechanical cooling, magnomechanical interaction is utilized to realize the cooling of resonators. We further illustrate the ground-state cooling can be effectively controlled by the external magnetic field.
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