@article{1c2f59bfc9d143298c9a1dcc5ba0bb7b,
title = "Superabsorption in an organic microcavity: Toward a quantum battery",
abstract = "The rate at which matter emits or absorbs light can be modified by its environment, as markedly exemplified by the widely studied phenomenon of superradiance. The reverse process, superabsorption, is harder to demonstrate because of the challenges of probing ultrafast processes and has only been seen for small numbers of atoms. Its central idea-superextensive scaling of absorption, meaning larger systems absorb faster-is also the key idea underpinning quantum batteries. Here, we implement experimentally a paradigmatic model of a quantum battery, constructed of a microcavity enclosing a molecular dye. Ultrafast optical spectroscopy allows us to observe charging dynamics at femtosecond resolution to demonstrate superextensive charging rates and storage capacity, in agreement with our theoretical modeling. We find that decoherence plays an important role in stabilizing energy storage. Our work opens future opportunities for harnessing collective effects in light-matter coupling for nanoscale energy capture, storage, and transport technologies.",
keywords = "quant-ph",
author = "Quach, {James Q.} and Mcghee, {Kirsty E.} and Lucia Ganzer and Rouse, {Dominic M.} and Lovett, {Brendon W.} and Gauger, {Erik M.} and Jonathan Keeling and Giulio Cerullo and Lidzey, {David G.} and Tersilla Virgili",
note = "Funding Information: We thank C. Clark and R. Preston at Helia Photonics Ltd. for fabricating the bottom DBRs. We also thank R. Grant for the measurement of concentration-dependent photoluminescence quantum yield of the LFO. We thank the U.K. EPSRC for partly funding this research via the Programme Grant ?Hybrid Polaritonics? (EP/M025330/1). We also thank the Royal Society for an International Exchange Grant (IES\R3\170324) ?Development of BODIPY dyes for strongly coupled microcavities.? K.E.M. thanks the University of Sheffield for a PhD studentship via the EPSRC DTP account EP/R513313/1. D.M.R. acknowledges studentship funding from EPSRC under grant no. EP/L015110/1. T.V. and L.G. thank the Regione Lombardia Funding project IZEB. J.Q.Q. acknowledges the Ramsay fellowship and the Centre for Nanoscale BioPhotonics Family Friendly Fund for financial support of this work. Publisher Copyright: {\textcopyright} 2022 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY).",
year = "2022",
month = jan,
day = "14",
doi = "10.1126/sciadv.abk3160",
language = "English",
volume = "8",
journal = "Science Advances",
issn = "2375-2548",
publisher = "American Association for the Advancement of Science",
number = "2",
}