Author

Mark M. Wilde

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Preprint Sep 2026

Limits for molecular spectroscopy from quantum channel discrimination

Absorption spectroscopy identifies molecules by detecting frequency-dependent optical loss, and its fundamental limit is a quantum channel-discrimination problem. In this work, we develop a general framework for characterizing the ultimate quantum limit of molecular absorption spectroscopy without collective measuremen...

Anirban Dey, Akib Karim, P. Kok et al. · 0 citations

#machine learning Mar 2026

Fermi-Dirac thermal measurements: A framework for quantum hypothesis testing and semidefinite optimization

Quantum measurements are the means by which we recover messages encoded into quantum states. They are at the forefront of quantum hypothesis testing, wherein the goal is to perform an optimal measurement for arriving at a correct conclusion. Mathematically, a measurement operator is Hermitian with eigenvalues in [0,1]....

Nana Liu, Mark M. Wilde · arXiv.org · 6 citations