  In the paper we consider a new approach for storage and cloning of quantum
information by three level atomic (molecular) systems in the presence of the
electromagnetically induced transparency (EIT) effect. For that, the various
schemes of transformation into the bright and dark polaritons for quantum
states of optical field in the medium are proposed. Physical conditions of
realization of quantum nondemolition (QND) storage of quantum optical state are
formulated for the first time. We have shown that the best storage and cloning
of can be achieved with the atomic ensemble in the Bose-Einstein condensation
state. We discuss stimulated Raman two-color photoassociation for experimental
realization of the schemes under consideration.
