Remote weak-signal measurement via bound states in optomechanical systems

• 作者: Xun Li Biao Xiong Shilei Chao Chengsong Zhao Hua-Tang Tan Ling Zhou
• 来源期刊: 理论物理通讯（英文版）
• 年，卷（期）: 2021,（2）
• 所属期刊栏目: QUANTUM PHYSICS AND QUANTUM INFORMATION
• 页码范围: 59-67
• 页数: 9页
• 语种: 英文

摘要

A scheme for remote weak-signal sensors is proposed,in which a coupled-resonator optical waveguide(CROW),as a transmitter,couples to a hybrid optomechanical cavity and an observing cavity at its two ends.Non-Markovian theory is employed to study the weak-force sensor by treating the CROW as a non-Markovian reservoir of cavity fields.The dissipationless bound states in the non-Markovian regime are conducive to remotely transmitting a signal in the CROW.Our results show that a sensor with ultrahigh sensitivity can be achieved with the assistance of bound states under certain parameter regimes.