Physical Review LettersOptical Bloch Equations for Low-Temperature SolidsM. Yamanoi, Joseph H. EberlyPublished Apr 9, 1984• 44 citationsPublisherAbstractReceived 3 February 1984DOI:https://doi.org/10.1103/PhysRevLett.52.1353©1984 American Physical SocietyDOI10.1103/physrevlett.52.1353