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quant-ph2025
Enhancing Dynamic Range of Sub-Quantum-Limit Measurements via Quantum Deamplification
Qi Liu, Ming Xue, Matthew Radzihovsky +4
Balancing high sensitivity with a broad dynamic range is a fundamental challenge in measurement science, as improving one often compromises the other. While traditional quantum met…
quant-ph2024
Evaluation of quantum Fisher information for large system
Qi Liu
Quantum Fisher information (QFI) plays a vital role in quantum precision measurement, quantum information, many-body physics, and other domains. Obtaining the QFI from experiment f…