42.50.-p Quantum optics (for lasers, see 42.55.-f and 42.60.-v; see also 42.65.-k Nonlinear optics; 03.65.-w Quantum mechanics)
- 42.50.Ar Photon statistics and coherence theory
- 42.50.Ct Quantum description of interaction of light and matter; related experiments
- 42.50.Dv Quantum state engineering and measurements (see also 03.65.Ud Entanglement and quantum nonlocality, e.g., EPR paradox, Bells inequalities, GHZ states, etc.)
- 42.50.Ex Optical implementations of quantum information processing and transfer
- 42.50.Gy Effects of atomic coherence on propagation, absorption, and amplification of light; electromagnetically induced transparency and absorption
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42.50.Hz Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift (for multiphoton ionization and excitation of atoms and molecules, see 32.80.Rm, and 33.80.Rv, respectively)
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- 42.50.Lc Quantum fluctuations, quantum noise, and quantum jumps
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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-tempor
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- 42.50.Nn Quantum optical phenomena in absorbing, amplifying, dispersive and conducting media; cooperative phenomena in quantum optical systems
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42.50.Pq Cavity quantum electrodynamics; micromasers
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- 42.50.St Nonclassical interferometry, subwavelength lithography
- 42.50.Tx Optical angular momentum and its quantum aspects (see also 42.25.Ja Polarization); Mechanical effects of light on atoms, molecules, and ions, see 37.10.Vz
- 42.50.Wk Mechanical effects of light on material media, microstructures and particles (see also 87.80.Cc Optical trapping in biology and medicine); Experimental tests in quantum electrodynamics, see 12.20.Fv; Measurements theory in quantum mechanics, see 03.65.Ta
- 42.50.Xa Optical tests of quantum theory