光子
微波食品加热
负质量
模式(计算机接口)
有效质量(弹簧-质量系统)
物理
原子物理学
材料科学
核物理学
光学
量子力学
计算机科学
操作系统
作者
Ines C. Rodrigues,Gary A. Steele,Daniel Bothner
标识
DOI:10.1103/physrevlett.132.203603
摘要
Harmonic oscillators belong to the most fundamental concepts in physics and are central to many current research fields such as circuit QED, cavity optomechanics, and photon pressure systems. Here, we engineer a microwave mode in a superconducting LC circuit that mimics the dynamics of a negative mass oscillator, and couple it via photon pressure to a second low-frequency circuit. We demonstrate that the effective negative mass dynamics lead to an inversion of dynamical backaction and to sideband cooling of the low-frequency circuit by a blue-detuned pump field, which can be intuitively understood by the inverted energy ladder of a negative mass oscillator.
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