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quant-ph2021★ 9 cited
Demonstration of quantum-limited discrimination of multi-copy pure versus mixed states
Arunkumar Jagannathan, Olivia Brasher, Michael Grace +3
We demonstrate an optical receiver that achieves the quantum Chernoff bound for discriminating coherent states from thermal states in the multi-copy scenario. In contrast, we find…
quant-ph2019★ 14 cited
Quantum-limited discrimination of laser light and thermal light
Jonathan L. Habif, Arunkumar Jagannathan, Samuel Gartenstein +2
Understanding the fundamental sensitivity limit of an optical sensor requires a full quantum mechanical description of the sensing task. In this work, we calculate the fundamental…