T-VIOLATION IN THE STIMULATED RAMAN EFFECT - EVOLUTION IN TIME

We calculate the time dependence of the T-violating term in the stimul ated Raman transition which was discussed for short times in earlier p apers. We study a double h-system and use numerical methods to find ex plicit results for caesium. The two stimulating fields are taken to be plane polarized with polarization vectors epsilon(a) and epsilon(b). We investigate two terms similar to(epsilon(a) . epsilon(b))epsilon(a) x epsilon(b), one of which is due to T-violation, the other one to th e decay of the intermediate states. We discuss their different time de pendence. In addition to these two terms there is a T-violating term w hich is proportional to the decay constant of the intermediate states and does not vanish even for unpolarized beams. We show its time depen dence. Finally, we comment on the possible influence of T-violation on population trapping in a system possessing a dark state.