Shifts of a resonance line in a dense atomic sample.
We study the collective response of a dense atomic sample to light essentially exactly using classical-electrodynamics simulations. In a homogeneously broadened atomic sample there is no overt Lorentz-Lorenz local field shift of the resonance, nor a collective Lamb shift. However, the addition of inhomogeneous broadening restores the usual mean-field phenomenology.
Department of Physics, University of Connecticut, Storrs, Connecticut 06269-3046, USA.
Juha
J
Javanainen
Mathematical Sciences, University of Southampton, Southampton SO17 1BJ, United Kingdom.
Janne
J
Ruostekoski
Department of Physics, University of Connecticut, Storrs, Connecticut 06269-3046, USA.
Yi
Y
Li
Department of Physics, University of Connecticut, Storrs, Connecticut 06269-3046, USA.
Sung-Mi
SM
Yoo