Enhancement of Quantum Sensing in a Cavity Optomechanical System around Quantum Critical Point

• DOI: 10.48550/arxiv.2303.16486
• Publication Date: 2023-01-01
• Authors: Shao-Bo Tang; Hao Qin; Bingbing Liu; D. -Y. Wang; Kaifeng Cui; S. -L. Su; L. -L. Yan; Gang Chen
• Keywords: Critical point (mathematics); Quantum sensor

The precision of quantum sensing could be improved by exploiting phase transitions, where the physical quantity tends to diverge when system approaches critical point. This enhancement phenomenon has been applied Rabi model in a dynamic framework, showing promising without need for complex initial state preparation. In this work, we present transition coupling cavity-mechanical oscillator strength crosses point, determined effective detuning cavity and frequency mechanical mode. By utilizing phenomenon, obtain prominent sensing, such as position momentum oscillator. result provides an alternative method enhance some quantities, mass, charge, weak force, large mass system.