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quant-ph2026
Achieving the Quantum Limits with Twin-Field Sensors
Yaohua Li, Fan Yang, Klaus Mølmer
Continuous measurements play a fundamental role in quantum experiments, yet understanding and extracting the maximal possible information in a continuous probe signal remains a sig…
quant-ph2025
Open-system analogy of Berry conjecture
Yaohua Li, Yunhan Wang, Yong-Chun Liu
Berry conjecture is central to understanding quantum chaos in isolated systems and foundational for the eigenstate thermalization hypothesis. Here we establish an open-system analo…
quant-ph2024
Exact steady state of quantum van der Pol oscillator: critical phenomena and enhanced metrology
Yaohua Li, Xuanchen Zhang, Yong-Chun Liu
Quantum criticality of open many-body systems has attracted lots of interest for emergent phenomena and universality. Here we present the exact steady state of the quantum van der…