42.50.-p Quantum optics (for lasers, see 42.55 and 42.60; see also 42.65 Nonlinear optics; 03.65 Quantum mechanics) ( 0 Dok. )

• 42.50.Ar Photon statistics and coherence theory ( 0 Dok. )
• 42.50.Ct Quantum description of interaction of light and matter; related experiments ( 0 Dok. )
• 42.50.Dv Nonclassical field states; squeezed, antibunched, and sub-Poissonian states; operational definitions of the phase of the field; phase measurements ( 0 Dok. )
• 42.50.Fx Cooperative phenomena; superradiance and superfluorescence ( 0 Dok. )
• 42.50.Gy Effects of atomic coherence on propagation, absorption, and amplification of light ( 0 Dok. )
• 42.50.Hz Strong-field excitation of optical transitions in quantum systems; multi-photon processes; dynamic Stark shift (for multiphoton ionization and excitation of atoms and molecules, see 32.80.R, and 33.80.R, respectively) ( 0 Dok. )
• 42.50.Lc Quantum fluctuations, quantum noise, and quantum jumps ( 0 Dok. )
• 42.50.Md Optical transient phenomena: quantum beats, photon echo, free- induction decay, dephasings and revivals, optical nutation, and self-induced transparency Dynamics of nonlinear optical systems; optical instabilities, optical chaos, and optical spatio temporal dynamics, see 42.65.S Optical solitons; nonlinear guided waves, see 42.65.T ( 0 Dok. )
• 42.50.Vk Mechanical effects of light on atoms, molecules, electrons, and ions (see also 32.80.P and 33.80.P Optical cooling and trapping of atoms and molecules, respectively) Optical tests of fundamental laws and forces, see 12.20.F Experimental tests in quantum electrodynamics and03.65.B Theory of measurements in quantum mechanics ( 0 Dok. )