Reviews of topical problems

V.I. Bredikhin, M.D. Galanin, V.N. Genkin “Two-photon absorption and spectroscopy” Sov. Phys. Usp. 16 299–321 (1973)

V.G. Gorshkov “Electrodynamic processes in colliding beams of high-energy particles” Sov. Phys. Usp. 16 322–338 (1973)

I.M. Beterov, R.I. Sokolovskii “Nonlinear effects in the emission and absorption spectra of gases in resonant optical fields” Sov. Phys. Usp. 16 339–349 (1973)

N.N. Sobolev, V.V. Sokovikov “The carbon monoxide laser. Population inversion mechanism” Sov. Phys. Usp. 16 350–360 (1973)

M.A. Mikulinskii “Effect of small perturbations on the behavior of thermodynamics quantities near a second-order phase transition point” Sov. Phys. Usp. 16 361–380 (1973)

D.V. Skobel’tsyn “The momentum-energy tensor of the electromagnetic field” Sov. Phys. Usp. 16 381–401 (1973)

Physics of our days

L.L. Gol’din, V.P. Dzhelepov, M.F. Lomanov, O.V. Savchenko, V.S. Khoroshkov “Application of high-energy heavy charged particles in medicine” Sov. Phys. Usp. 16 402–413 (1973)

G.A. Askar’yan “Particle motion in a laser beam” Sov. Phys. Usp. 16 414–415 (1973)

New devices and methods of measurement

Yu.P. Vakhrushin, I.M. Matora “Linear induction accelerators—new generators of high power relativistic electron beams” Sov. Phys. Usp. 16 416–426 (1973)

Methodological notes

Ya.B. Zel’dovich “Scattering and emission of a quantum system in a strong electromagnetic wave” Sov. Phys. Usp. 16 427–433 (1973)

V.L. Ginzburg “The laws of conservation of energy and momentum in emission of electromagnetic waves (photons) in a medium and the energy-momentum tensor in macroscopic electrodynamics” Sov. Phys. Usp. 16 434–439 (1973)

Personalia

V.P. Dmitrievskii, L.I. Lapidus, M.A. Markov, B. Pontecorvo, A.A. Tyapkin “Venedikt Petrovich Dzhelepov (on his sixtieth birthday)” Sov. Phys. Usp. 16 440–441 (1973)

A.M. Bonch-Bruevich, Yu.N. Denisyuk, F.I. Fedorov, P.P. Feofilov “Boris Ivanovich Stepanov (on his sixtieth birthday)” Sov. Phys. Usp. 16 442–443 (1973)