  In this study, we apply the monitoring master equation describing decoherence
of internal states to an optically active molecule prepared in a coherent
superposition of nondegenerate internal states interacting with thermal photons
at low temperatures. We use vibrational Raman scattering theory up to the first
chiral-sensitive contribution, i.e., the mixed electric-magnetic interaction,
to obtain scattering amplitudes in terms of molecular polarizability tensors.
The resulting density matrix is used to obtain elastic decoherence rates.
