6533b7d0fe1ef96bd125b6cf

RESEARCH PRODUCT

Non-markovian dynamics and spectrum of a moving atom strongly coupled to the field in a damped cavity

C. LeonardiA. Vaglica

subject

PhysicsRabi cycleField (physics)business.industryTime evolutionPopulation inversionAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsDipoleOpticsExcited statePhysics::Atomic PhysicsElectrical and Electronic EngineeringPhysical and Theoretical ChemistrybusinessRabi problemVacuum Rabi oscillation

description

Abstract We study the internal dynamics of an atom entering in its excited state in a damped cavity and strongly coupled to the field. We show that the time evolution of its dipole operator is described by a second order Langevin-like equation with time dependent coefficients. We use this equation to investigate the time dependence of the average population inversion and the spectrum of the emitted radiation. We discuss how Rabi oscillations are modified by the motion of the atom and how the spectrum changes from the vacuum Rabi doublet to a more complex structure having new lines, different frequency localizations and modified widths.

https://doi.org/10.1016/0030-4018(93)90629-j