基态
谐振器
物理
马格农
声子
磁致伸缩
凝聚态物理
磁场
磁阻尼
联轴节(管道)
光子
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
作者
Ming‐Song Ding,Zheng Li,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:40
摘要
Quantum manipulation of mechanical resonators has been widely applied in fundamental physics and quantum information processing. Among them, cooling a mechanical system to its quantum ground state is regarded as a key step. In this work, we propose a scheme that can realize ground-state cooling of the 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. Within experimentally feasible parameters, we demonstrate that the extra magnetic damping can be utilized to achieve ground-state cooling of the magnomechanical resonator via an effective dark-mode interaction. The magnomechanical cooling mainly comes from the magnon–phonon interaction terms. We further illustrate that optimal cooling can be obtained by adjusting the external magnetic field.
科研通智能强力驱动
Strongly Powered by AbleSci AI