Journal of Experimental and Theoretical Physics

Journal of Experimental and Theoretical Physics

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JETP, Vol. 70, No. 1, January 1990
(Russian original - ZhETF, Vol. 97, No. 1 , January 1990)

GRAVITATION, ASTROPHYSICS

Galaxy mass and momentum distribution formed by merging, and the problem of nuclear activity

A.V. Kats, V.M. Kontorovich

1

Black-hole formation in the center of a nondissociative gravitational singularity

A.V. Gurevich, K.P. Zybin

10

NUCLEI, PARTICLES, AND THEIR INTERACTION

The 1/N expansion in quantum mechanics

V.D. Mur, V.S. Popov, A.V. Sergeev

16

Calculation of the photon structure function in QCD

A.S. Gorskii, B.L. loffe, A.G. Oganesyan, A. Yu. Khodzhamiryan

25

Prospects of search for CP nonconservation in beauty hadrons

A.E. Blinov, N.G. Ural'tsev, V.A. Khoze

32

Kinetics of excited muonic hydrogen in mixtures of hydrogen and helium isotopes

V.M. Bystritskii, A.V. Kravtsov, N.P. Popov

40

ATOMS, SPECTRA, RADIATION

Rydberg electron in a multipole field

A.K. Kazanskii; V. N. Ostrovskii

43

Anisotropy of collisions and the Zeeman structure of nonlinear resonances

G.N. Nikolaev, S.G. Rautian

48

Phase conjugation of mutually incoherent light beams in a photorefractive medium

A.A. Zozulya, A.V. Mamaev

56

Nonadiabatic transitions and decay reactions during slow collisions of polarized atoms

63

Coherent four-wave mixing of light pulses

A.A. Zobolotskii

71

Electromagnetic radiation emitted by ultrarelativistic particles scattered in an excited medium

V.S. Malyshevskii

76

Propagation of ultrashort periodic pulses in nonlinear fiber waveguides

A.M. Kamchatnov

80

Parity nonconservation effects in nonlinear optics

M.G. Kozlov, S.P. Porsev

85

Electron-current modulation in the field of a standing electromagnetic wave

D.F. Zaretskii, Yu. A. Malov

90

Relation between exactly integrable models in resonance optics

94

PLASMA, GASES

Closure of magnetic-field force lines and orthogonality condition

100

Singular wave collapse

V.M. Malkin, E.G. Shapiro

102

Charged-particle kinetics in a stochastic medium with long-wavelength fluctuations

A.M. Bykov, I.N. Toptygin

108

LIQUID

Bleaching of water by intense light at the maximum of the ${\lambda} \sim 3{\mu}m$ absorption band

K.L. Vodop'yanov

114

Acoustic method for monitoring boundary effects in nematics

O.A. Kapustina, V.N. Reshetov

122

SOLIDS

Theory of quasielastic scattering of light by electrons in semiconductors with a nonparabolic dispersion law

V.A. Voitenko, I.P. lpatova

125

Nonlinear surface acoustic waves in dilute parametric dielectrics

G.T. Adamshvili

131

Dependence of the magnetic-anisotropy energy in iron on the magnetic field

I.M. Puzei, V.V. Sadchikov

137

Fluctuation properties of small silicon field-effect transistors

A.A. Bykov, G.M. Gusev, Z.D. Kvon, B.I. Fomin

140

Excess conductivity and diamagnetism in superconducting perovskite-like systems: prospects for raising the critical temperature

N.E. Alekseevskii, A.V. Mitin, E.P. Khlybov, G.M. Kuz'micheva, V.I. Nizhankovskii, J. Warchulska, A. Gilewski

148

Microscopic theory of successive phase transitions in alkali metal cyanides

A.F. Sadreev. Yu. V. Sukhinin

160

Raman scattering of light by electrons in superconductors: contribution of surface region and Coulomb-interaction effects

A.G. Mal'shukov, V.I. Yudson

171

Symmetry and dynamics of domain walls in weak ferromagnets

E.V. Gomonai, B.A. Ivanov, V.A. L'vov, G.K. Oksyuk

174

Effect of structural relaxation of the amorphous alloy Ni₃₄Zr₆₆ on the temperature dependence of a superconducting gap

V.F. Gantmakher, M.V. Osherov

184

Peculiarities of nonlinear response of YBaCuO ceramic superconductors near the transition point

Yu. M. lvanchenko, A.A. Lisyanskii, M.I. Tsindlekht

187

Solitons on a dynamic domain wall of a ferromagnet

M.V. Chetkin, I.V. Parygina, V.O. Smirnov, S.N. Gadetskii

191

Nonlinear theory of magnetoacoustic oscillations and of acoustic cyclotron resonance in metals

V.A. Burdov, V. Ya. Demikhovskii

194

Magnetic resonance in the noncollinear hexagonal antiferromagnets CsNiCI₃ and CsMnBr₃

I.A. Zaliznyak, L.A. Prozorova, S.V. Petrov

203

Critical state and lower critical field of the organic superconductor χ- (BEDT-TTF)₂Cu(NCS)₂

M.V. Kartsovnik, V.M. Krasnov, N.D. Kushch

208

Electric resistance of a medium with a fractal structure

V.F. Gantmakher, S.E. Esipov, V.M. Teplinskii

211

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