In this manuscript we review the possibility of inducing large coherence in a
macroscopic dense target by using adiabatic techniques. For this purpose we
investigate the degradation of the laser pulse through propagation, which was
also related to the size of the prepared medium. Our results show that,
although adiabatic techniques offer the best alternative in terms of stability
against experimental parameters, for very dense media it is necessary to
engineer laser-matter interaction in order to minimize laser field degradation.
This work has been triggered by the proposal of a new technique, namely
Radiative Emission of Neutrino Pairs (RENP), capable of investigating neutrino
physics through quantum optics concepts which require the preparation of a
macrocoherent state.Comment: 10 pages, 10 figure