Ie. Mazets et al., NORMAL-MODES FOR ELECTROMAGNETICALLY INDUCED TRANSPARENCY IN THE PRESENCE OF OFF-RESONANCE TRANSITIONS, Physics letters. A, 229(2), 1997, pp. 77-82
Electromagnetically induced transparency in ideal Lambda atoms involve
s lossless propagation for paired fields with locked phase difference.
Coupled equations for atomic and field vectors are solved to demonstr
ate that such a normal-mode propagation is stable against perturbation
s produced by off-resonance transitions, which can be present in real
atoms. (C) 1997 Published by Elsevier Science B.V.