Exploiting Quantum Entanglement for Optomechanical Sensors
Thursday, September 28, 2023, 10:00 AM - 10:45 AM

In optomechanical sensing, mechanical oscillators respond to external forces, magnetic and acoustic signals, while optical probes read out the motion of mechanical oscillators to infer the external signal. Researchers can use an array of optomechanical sensors to scale up measurement performance, but the measurement precision of optomechanical sensors is fundamentally limited by the measurement noise arising from quantum fluctuations of the probe light and mechanical oscillators. Zhang’s team is currently working on integrated quantum chips for entanglement-enhanced sensing. Assembling all of these components on-chip will eliminate the need for optical alignment and make the sensors much more stable—and overcome the two main challenges of their current experiment. Zhang’s talk on quantum sensing will cover some of the fundamental concepts and their recent research in this area.