1. E.T. Jaynes, F.W. Cummings, Proc. IEEE 51, 89 (1963)
2. C.C. Gerry, P.L. Knight, Introductory Quantum Optics (Cambridge University Press, Cambridge, 2005)
3. H. Moya-Cessa, F. Soto-Eguibar, Introduction to Quantum Optics (Rinton Press, Princeton, 2011)
4. S. Swain, J. Phys. A 5, 1587 (1972)
5. J.H. Eberly, N.B. Narozhny, J.J. Sanchez-Mondragon, Phys. Rev. Lett. 44, 1323 (1980)