RT Journal Article T1 Roadmap on quantum light spectroscopy A1 Mukamel, Shaul A1 Freyberger, Matthias A1 Schleich, Wolfgang A1 Sánchez Soto, Luis Lorenzo AB 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. PB IOP Publishing Ltd. SN 0953-4075 YR 2020 FD 2020-04-14 LK https://hdl.handle.net/20.500.14352/6147 UL https://hdl.handle.net/20.500.14352/6147 LA eng NO Artículo escrito por 34 autores.© 2019 IOP Publishing Ltd.The support the National Science Foundation (Grant No.CHE-1663822) is gratefully acknowledged.This research was partially supported by the Swiss National Science Foundation through the grant PP00P2_159259...EdV acknowledges support from MINECO (FIS2015-64951-R, Ramón y Cajal). NO Ministerio de Economía y Competitividad (MINECO) NO National Science Foundation (NSF) NO Swiss National Science Foundation (SNSF) DS Docta Complutense RD 16 abr 2025