Excitons bound by photon exchange
Authors: Cortese E., Ngoc-Linh T., Manceau J.M., Bousseksou A., Carusotto I., Biasiol G., Colombelli R., De Liberato S.
Autors Affiliation: Univ Southampton, Sch Phys & Astron, Southampton, Hants, England; Univ Paris Saclay, UMR 9001, CNRS, Ctr Nanosci & Nanotechnol C2N, Palaiseau, France; Univ Trento, INO CNR BEC Ctr, Povo, Italy; Univ Trento, Dipartimento Fis, Povo, Italy; CNR IOM, Lab TASC, Trieste, Italy
Abstract: Electrons and holes in doped quantum wells cannot form bound states from usual Coulomb interaction. However, when the system is embedded in a cavity, the exchange of photons provides an effective attraction, leading to the creation of bound excitons.
Journal/Review: NATURE PHYSICS
Volume: 17 Pages from: 31 to: 35
More Information: S.D.L. is a Royal Society Research Fellow and was partly funded by the Philip Leverhulme Prize of the Leverhulme Trust. R.C., J.M.-M., G.B. and I.C. were partly funded by the European Union FET-Open Grant Number MIR-BOSE 737017. R.C. and A.B. were partly funded by the French National Research Agency (project IRENA). This work was partly supported by the French RENATECH network.KeyWords: Light-matter coupling, doped quantum wells, quantum material engineeringDOI: 10.1038/s41567-020-0994-6