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quant-ph2026
Quantum double lock-in detection via sequential orthogonal quantum mixing
Min Zhuang, Sijie Chen, Jiahao Huang +1
High-precision measurement of oscillating signal is a ubiquitous issue in fundamental science and a critical task in practical technologies. In quantum metrology, quantum lock-in d…
quant-ph2026
Entanglement-enhanced quantum metrology via alternating in-phase and quadrature modulation
Jihao Ma, Jiahao Huang, Chaohong Lee
Quantum metrology harnesses quantum entanglement to improve measurement precision beyond standard quantum limit. Although nonlinear interaction is essential for generating entangle…