6533b871fe1ef96bd12d10a2

RESEARCH PRODUCT

Photon localization versus population trapping in a coupled-cavity array

Francesco CiccarelloG. M. PalmaFederico Lombardo

subject

Physicseducation.field_of_studyQuantum Physicscavity array quantum transport open quantum systems cavity QEDPhotonQuantum decoherenceField (physics)PopulationFOS: Physical sciencesTrappingAtomic and Molecular Physics and OpticsAtomBound stateAtomic physicseducationQuantum Physics (quant-ph)Excitation

description

We consider a coupled-cavity array (CCA), where one cavity interacts with a two-level atom under the rotating-wave approximation. We investigate the excitation transport dynamics across the array, which arises in the atom's emission process into the CCA vacuum. Due to the known formation of atom-photon bound states, partial field localization and atomic population trapping in general take place. We study the functional dependance on the coupling strength of these two phenomena and show that the threshold values beyond which they become significant are different. As the coupling strength grows from zero, field localization is exhibited first.

10.1103/physreva.89.053826http://hdl.handle.net/10447/98097