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quant-ph2026
Quantum-Enhanced Atomic Sensor via Spin Nonequilibrium Criticality
Ding Huang, Minwei Shi, Guzhi Bao +2
The sensitivity of quantum sensors is fundamentally constrained by the standard quantum limit (SQL) arising from intrinsic quantum fluctuations. While non-classical resources like…
quant-ph2024
Quantum Metrology with Higher-order Exceptional Points in Atom-cavity Magnonics
Minwei Shi, Guzhi Bao, Jinxian Guo +1
Exceptional points (EPs), which arose early from non-Hermitian physics, significantly amplify the system's response to minor perturbations, and they act as a useful concept to enha…