1. Scully, M.O.: Correlated spontaneous-emission lasers: quenching of quantum fluctuations in the relative phase angle. Phys. Rev. Lett. 55, 2802 (1985)
2. Bergou, J.A., Orszag, M., Scully, M.O.: Correlated-emission laser: nonlinear theory of the quantum-beat laser. Phys. Rev. A 38, 754 (1988) For a general review of the subject of correlated emission laser, see also: Orszag, M., Bergou, J.A., Schleich, W., Scully, M.O.: The correlated spontaneous emission laser. In: Tombesi, P., Pike, E.R. (eds.) Squeezed and Non-classical Light. Plenum, New York (1989)
3. Scully, M.O., Zubairy, M.S.: Theory of the quantum-beat laser. Phys. Rev. A 35, 752 (1987)
4. Scully, M.O., Lamb, W.E.: Quantum theory of an optical maser. I. General theory. Phys. Rev. 159, 208 (1967); See also: SargentIII, M., Scully, M.O., Lamb, W.E.: Laser Physics. Addison Wesley, Reading (1974)
5. Krause, J., Scully, M.O.: Theory of the holographic laser: correlated emission in a ring cavity. Phys. Rev. A 36, 1771 (1987)