Coherent preparation by laser light of quantum states of atoms and molecules can lead to
quantum interference in the amplitudes of optical transitions. In this way the optical …

The paper gives an overview of the use of the coherent population trap** phenomenon
(CPT) in alkali-metal atoms in the implementation of atomic frequency standards. Several …

E lectromagnetically induced transparency is a technique for eliminating the effect of a
medium on a propagating beam of electromagnetic radiation. EIT may also be used, but …

We predict the possibility of sharp, high-contrast resonances in the optical response of a
broad class of systems, wherein interference effects are generated by coherent perturbation …