PHYSICS- USPEKHI (TR)

Vol. 42, No. 1

From the Editorial Board 1
80 years of Uspekhi Fizicheskikh Nauk 3

Stochastic resonance: noise-enhanced order 7
V S Anishchenko, A B Neiman, F Moss, L Schimansky-Geier

What are stochastic filtering and stochastic resonance? 37
Yu L Klimontovich

Kourovka-98: the XXVII International Winter Workshop 45
on Theoretical Physics
V D BucheVnikov, A P Tankeev, V G Shavrov

Scientific session of the Division of General Physics and Astronomy 49
of the Russian Academy of Sciences (20 May 1998):
contributions by N E Andreev et al., A V Kim et aL, M V Fedorov,
A A Andreev et al., V M Gordienko et al., A A Babin et al.

125th anniversary of ZhETF(Physics-JETP) 79
M I Kaganov

In memory of Boris Sergeevich Dzhelepov 97
In memory of David Abramovich Kirzhnits 99
In memory of Sergei VasiFevich Vonsovskii 101
In memory of Leon Mikhailovich Biberman 103

New books on physics and related sciences 105
E V Zakharova

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PHYSICS USPEKHI (TR)

VOL. 42, NO. 3, MARCH 1999


Contents

REVIEWS OF TOPICAL PROBLEMS
Spin-fluctuation mechanism of high- Tc superconductivity 215
and order-parameter symmetry
Yu A lzyumov


Nonlinear dynamics of zigzag molecular chains 245
A V Savin, L I Manevich, P L Christiansen, A V Zolotaryuk


FROM THE HISTORY OF PHYSICS

Development of dynamic high-pressure techniques in Russia 261
L V AVtshuler, R F Trunin, V D Uriin, V E Fortov,
A I Funtikov


CONFERENCES AND SYMPOSIA

Scientific session of the Division of General Physics and Astronomy
of the Russian Academy of Sciences (25 November 1998):
Problems of nanooptics 281
V S Letokhov


Spectroscopy of polaritons in a semiconductor microcavity
E A Vinogradov, A L Dobryakov, S A Kovalenko, Yu E Lozovik, 282
Yu A Matveets, V M Farztdinov


Excitons and optical nonlinearities in hybrid organic-inorganic 284
nanostructures
V M Agranovich


The outlook for nanolocal femtosecond spectroscopy and nanolithography 284
Yu E Lozovik, S P Merkulova


Spectroscopy of ions with the 5d electrons in the ground state 285
A N Ryabtsev


Microwave spectroscopy of molecular Van der Waals complexes 287
in astrophysical studies
B S Dumesh


Infrared spectroscopy of new spin-Peierls compounds 288
M N Popova


New developments of optical spectral instruments in the Institute 290
of Spectroscopy, RAS
O N Kompanets


BIBLIOGRAPHY

New books on physics and related sciences 293
E V Zakharova


On "What is happening to us?" by E P Kruglyakov 295
V L Ginzburg


Physics news on the Internet 296
Yu N Eroshenko


1. Introduction 215


2. Superconductivity in a nearly antiferromagnetic Fermi liquid 217
2.1 The phenomenological approach in spin-fluctuation theory; 2.2 Superconductivity in the strong-coupling
approximation; 2.3 Quasiparticle spectrum and the physical properties of the normal phase


3. The spin-fluctuation mechanism in the Hubbard model 220
3.1 A self-consistent system of equations for electrons and the magnetic susceptibility; 3.2 Results of numerical calculations


4« The spin-fluctuation mechanism in the fJ-model 222
4.1 The concept of a spin polaron; 4.2 The self-consistent Born approximation for a superconductor


5. The Ginzburg-Landau theory for a superconductor with a d-wave order parameter 225
5.1 Derivation of the Ginzburg-Landau equations in the weak-coupling theory; 5.2 The phenomenological approach;
5.3 The structure of an isolated vortex; 5.4 A vortex lattice; 5.5 Further development of the theory


6. Experimental studies of the symmetry of the superconducting order parameter 230
6.1 Low-temperature studies of the superconducting phase; 6.2 Measurements of the Josephson tunnel current;
6.3 Measurements of flux quantization by tricrystal devices; 6.4 Angle-resolved spectroscopy;
6.5 Raman and neutron spectroscopy


7.The role of impurities 236
7.1 The gap, the superconducting transition temperature, and the density of states;
7.2 Thermodynamics and kinetics; 7.3 Localization

8. Summary 241

References 242

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PHYSICS-USPEKHI (TR)

VOL. 42, NO. 4, 1999


Diffusion mechanisms in disordered systems: computer simulation 297
D K Belashchenko


Coherent four-wave mixing in excited and ionized gas media: 321
four-photon spectrochronography, ellipsometry, and nonlinear-optical
imaging of atoms and ions
A M Zheltikov, N I Koroteev

What problems of physics and astrophysics seem now 353
to be especially important and interesting
(thirty years later, already on the verge of XXI century)?
V L Ginzburg


Physics news on the Internet 374


Entropy and information of open systems 375
Yu L Klimontovich


On the interaction of two electrically charged conducting balls 385
V A Saranin


Scientific session of the Division of General Physics a. stronomy 391
of the Russian Academy of Sciences (16 December 1996)
contributions by L E Vorob'ev et aL; V N Murzin, Yu A Mityagin;
S V lvanov, P S Kop'ev, A A Toropov; Z D Kvon et al.

In memory of Georgii Sergeevich Krinchik 407

In memory of Mikhail Veniaminovich Neziin 409

New books on physics and related sciences 411

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