https://phys.org/news/2024-01-quantum-energy-exchange-exploring-fields.html

I. Maillette de Buy Wenniger et al, Experimental Analysis of Energy Transfers between a Quantum Emitter and Light Fields, Physical Review Letters (2023). DOI: 10.1103/PhysRevLett.131.260401.

This research line delves into the complexities of energy exchanges within bipartite quantum systems, shedding light on quantum coherence, pure dephasing and their implications for future quantum technologies. By exploring energy exchanges in quantum emitters producing photon number superpositions, which involve both unitary and correlation energy, we aim to bridge the gap between theoretical predictions and experimental observations in quantum optics and thermodynamics. Our study examines the spontaneous emission of a qubit and the coupling of two light fields, revealing insights into the dependency of unitary energy transfers on the coherence of the emitted field. Our findings could have significant implications for advancing quantum mechanics, quantum computing, and quantum communication protocols.