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Free keywords:
quantum optics, spectroscopy, photon statistics
Abstract:
Conventional spectroscopy uses classical light to detect matter properties through the variation
of its response with frequencies or time delays. Quantum light opens up new avenues for
spectroscopy by utilizing parameters of the quantum state of light as novel control knobs and
through the variation of photon statistics by coupling to matter. This Roadmap article focuses on
using quantum light as a powerful sensing and spectroscopic tool to reveal novel information
about complex molecules that is not accessible by classical light. It aims at bridging the quantum
optics and spectroscopy communities which normally have opposite goals: manipulating
complex light states with simple matter e.g. qubits versus studying complex molecules with
simple classical light, respectively. Articles cover advances in the generation and manipulation
of state-of-the-art quantum light sources along with applications to sensing, spectroscopy,
imaging and interferometry.
