Year: 2015
Type: article
Abstract: We show that exciton-type transport in certain materials can be dramatically modified by their inclusion in an optical cavity: the modification of the electromagnetic vacuum mode structure introduced by the cavity leads to transport via delocalized polariton modes rather than through tunneling processes in the material itself. This can help overcome exponential suppression of transmission properties as a function of the system size in the case of disorder and other imperfections. We exemplify massive improvement of transmission for excitonic wave packets through a cavity, as well as enhancement of steady-state exciton currents under incoherent pumping. These results may have implications for experiments of exciton transport in disordered organic materials. We propose that the basic phenomena can be observed in quantum simulators made of Rydberg atoms, cold molecules in optical lattices, as well as in experiments with trapped ions.
Source: Physical Review Letters
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funders: National Science Foundation, Agence Nationale de la Recherche, Austrian Science Fund, Université de Strasbourg, Universität Innsbruck, Laboratoires d'excellence Nanostructures en Interaction avec leur Environnement, University of Colorado Boulder, European Office of Aerospace Research and Development
Awards: JILA PFC: Bridging theGap from Few-Body to Many-Body through Quantum Control, Control of ultracold quantum gases with shielded interactions, Hybrid cavity quantum optomechanics in an optical cavity, Quantum State Engineering and Quantum Information Processing with Ultra-Cold Polar Molecules, MRI-Consortium: Acquisition of a Supercomputer by the Front Range Computing Consortium, G8413387445
OpenAlex ID: W145392200