Roadmap on quantum light spectroscopy
Shaul Mukamel, Matthias Freyberger, Wolfgang P. Schleich, Marco Bellini, Alessandro Zavatta, Gerd Leuchs, Christine Silberhorn, Robert W. Boyd, L. L. Sánchez-Soto, André Stefanov, Marco Barbieri, Anna V. Paterova, Leonid A. Krivitsky, S. Shwartz, Kenji Tamasaku, Konstantin E. Dorfman, Frank Schlawin, Vahid Sandoghdar, Michael G. Raymer, Andrew H. Marcus, Oleg Varnavski, Theodore Goodson, Zhi‐Yuan Zhou, Bao‐Sen Shi, Shahaf Asban, Marlan O. Scully, G. S. Agarwal, Tao Peng, Alexei V. Sokolov, Zhedong Zhang, M. Suhail Zubairy, Ivan A. Vartanyants, Elena del Valle, Fabrice P. Laussy
Abstract
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.