D.A. Kirzhnits , A.D. Linde ,
№ 5 ON THE VACUUM STABILITY PBOBLEM IN QUANTUM ELECTR ODYNAMICS
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We note that the appearance of the «ghost pole» In QED would imply an absolute vacuum instability with respect to the spontaneous generation of an infinitely strong electric field. It is shown that such an instability actually takes place in QED of I types of charged fermions at all sufficiently large N.
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V.P. Frolov , D.M. Gitman ,
№ 15 DENSITY MATRIX IN QUANTUM ELEKTRODYNAMICS, EQIVALENCE PRINCIPLE AND HAWKINS EFFECT
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The expression for the density matrix describing particles of one sort (electrons or positrons) created by an external electromagnetic field from the vacuum let obtained. The explicit form of the density matrix is found for the case of constant and uniform electric field. The arguments are given in favour of the presence of connection between thermal nature of the density matrix describing particles created by the gravitational field of a black hole and the equivalence principle.
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A.N. Lesnov , V.I. Man’ko ,
№ 22 GAUGE-INVARIANT THEORIES WITH ALGEBRA DEPENDING ON SPACE-TIME COORDINATES
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The construction of gauge-invariant theory with Lie symmetry group depending on space-time point is proposed. It means that the gauge group structure constants are the functions of space-time coordinates nevertherless satisfying the Yakobi identities.
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R.E. Kallosh ,
№ 25 MODIFIED FEYNMAN RULES IN SUPERGRAVITY
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The new modified Feynman rules are obtained in super-gravity theory. They include an additional quartic ghost coupling. New modified Ward-Slavnov-Taylor identifies are presented and a theory constructed in this way is shown to be gauge-invariant on the mass shell in spite of the absence of a closed algebra.
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G.V. Kozlov , S.P. Lebedev , A.A. Volkov ,
№ 27 DIELECTRIC DISPERSION OF KH2PO4 АND PB5GE3O11 CRYSTALS AT FREQUENCIENS 6-18 CM-1.
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Gatchina.Moscow Tashkent. Alma-Ata ,
№ 32 Diffractive coherent production ib interactions of 400Gev/c protons on emulsion nuclei.
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L.n. Bulaevsii , D.I. Khomskii ,
№ 47 COMMENSURABILITY EFFECTS AND COLLECTIVE EXCITATIONS IN CHARGE-DENEITY-WAYE SYSTEM
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The spectrum of collective excitations of an incommensurate charge density нате (ICDW) is considered in the framework of the phenomenological approach taking into account commensurability effects. A model in which commensurability effects lead only to spatial variations of the phase of CDW in the ground state of the system is investigated. In this model the superstructure of IODW consists of domains in which CDW is almost commensurate with the original lattice, separated by domain walls («solitons»). Two modes of collective CDW oscillations are shown to exist in such a phase: an optical mode with a gap due to commensurability effects and a gapless acoustic mode which can be interpreted as oscillation of the domain walls. The transition to a commensurate case is investigated. The applicability of the model to real systems is discussed.
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N.B. Delone , V.P. Kraynov , B.A. Zon ,
№ 49 DIFFUSION PROCESS OF IONIZATION OF HIGHLY EXCITED ATOMS IN AN ALTERNATING ELECTROMAGNETIC FIELD
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M.V. Fedorov ,
№ 60 RESОNАNТ IONIZATION OF ATOMIC НYDROGEN AS A SOURCE OF POLARIZED PROTONS
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The method of obtaining polarized proton beams by means of resonant ionization of the hydrogen atoms is considered. The main physical features of the phenomenon are discussed. The conditions are found In which the degree of proton polarization is equal to 100%. The optimum values are found of the pulse duration and the field strengths of the exciting and ionizing light waves.
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Н.Б. Делоне , М.В. Фёдоров ,
№ 67 РЕЗОНАНСНАЯ ИОНИЗАЦИЯ АТОМОВ ИНТЕНСИВНЫМ ИЗЛУЧЕНИЕМ ИМПУЛЬСНЫХ ЛАЗЕРОВ
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Resonant ionization of atoms by a weak electromagnetic field has been described in our previous paper /1/. In the same paper the main equations (1-30) and (1-38) have been derived which describe the resonant ionization process in a strong field including the atomic spectrum perturbation phenomena (The double numeration similar to (1-30) here and everywhere bellow concerns the formulae of ref./1/). Here we reproduce the solutions of these equations corresponding to the physically different regimes of resonant ionization. In 1,2 the instantaneous swltching-on model is analized in details. The resonance broadening is described due to a)the finite pulse duration (i.e. the laser field nonmonochromaticity), b) the resonant mixing of the main and excited levels (the field broadening), c) the excited level ionization (the ionization broadening), d) the total ionization of atom. In the third paragraph the laser pulses with a smooth envelope are considered. The new mechanism of a resonance broadening appears in this case, connected with the time variation of quasienergy levels position in an external field with the varying amplitude. The theory is shown to be in accordance with the known experimental data. However in a whole the experimental information about the resonant ionization-available now is not sufficient for complete comparison with the theoretical predictions.
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L.N. Bulaevskii ,
№ 83 On the susceptibility and knight shift in onedimensional spin systems with osotropic random antiferromagnetic interaction
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O.P. Anashkin , V.N. Gusev , L.V. Kurnosova , A.G. Labensky , L.A. Razorenov , T.M. Sidyakina , M.I. Fradkin ,
№ 88 Helium cooling systems for physical research in space.
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A.E. Salomonovich , V.N. Bakun , V.S. Kovalev , T.M. Sidyakins , A.S. Khalkin , B.O. Ischakov , L.Z. Dulkin , V.A. Kovkov , V.I. Kostjukevich , V.S. Sergeev , E.I. Ivanov , A.L. Luk`janov , A.A. Andreev , V.P. Petrov , A.V. Vasiljev , B.K. Chemodanov , L.A. Senko , V.A. Molkov ,
№ 91 1/5-meter diameter submillimeter telescope with cooled detectors for orbital pilited station.
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A.D. Linde ,
№ 98 PHASE TRANSITIONS IN GAUGE THEORIES
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This is the first of the two papers devoted to the phase transitions in gauge theories and cosmology. In this paper we analyse high-temperature symmetry behaviour in gauge theories with spontaneous symmetry breaking. Infrared problem in quantum statistics of massless gauge fields is also discussed.
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A.E. Salomonovich , A.S. Khaikin , S.V. Solomonov , V.N. Bakun , V.S. Kovalev ,
№ 99 INVERSTIGATION OF THE SUB-MILLIMETER EARTH ATMOSPHERE RADIATION FKOM А SАТELLITE
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I.L. Beigman , L.A. Vainshtein , B.N. Grigorevskaya , V.M. Lyutyi , I.P. Tindo , A.I. Shuryghin ,
№ 102 Upper limits on soft X-RAY fluxes from some celestial objects observed by the «Salyut 4» orbital station.
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A.M. Calper , V.G. Kirillov-Ugryumov , Yu.D. Kotov , L.V. Kurnosova , A.V. Kurochkin , N.G. Leikov , M.I. Fradkin , Yu.T. Yurkin , S.V. Damle , G.S. Gokhale , P.K. Kunte , B.V. Sreekantan ,
№ 104 Soviet-indian gamma-ray experiment carried iut by balloon at the geomagnetic latitude 8oN.
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O.K. Kalashnikov , V.V. Klimov ,
№ 110 SPONTANEOUS SYMMETRY BREAKING AND GAUGE INTERACTION HIERARCHY.
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Following the calculations of the effective potential in the one-loop approximation it is shown that within gauge theories a spontaneous symmetry breaking may provide a gauge hierarchy of any desired magnitude.
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V.S. Gorshkov , V.N. Gusev , T.N. Kruchkova , L.V. Kurnosova , V.I. Logachev , G.F. Platonov , L.A. Rasorenov , V.T. Samoilenko , N.P. Topchiev , M.I. Fradkin , S.V. Damle , G.S. Gokhale , P.K. Kunte , B.V. Sreekantan ,
№ 113 JOINT SOVIET-INDIAN BALLOON MEASUREMENTS OF THE SPLASH-ALBEDO
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V.I. Man»ko , M.A. Markov ,
№ 114 BLACK HOLES EVAPORATION AND BIG MASS PARTICLE (MAXIMON, INTERМEDIAТЕ BOSON) CREATION IN NONSTATIONARY UNIVERSE
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The process of creation of the particles with maximally big masses (maximons, intermediate bosons) in the nonstationary Universe in the frame of scalar (neutral and charged) field theory is considered. As it was shown, if there exists such a mechanism of maximons creation, these particles must be stable. These particles (maximons) can be the final states of decayind black holes. A possible mechanism of cosmic rays creation as a result of «vacuum» generation of known unstable particles is discussed. In the frame of approach, of ref. 1-5 the limits of the mass and the life time of intermediate boson is obtained. It is shown that the masses ~>,10 Gev.
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S.G. Krivoshlykov , I.N. Sisakian ,
№ 117 QUAHTUM MECHANICAL THEORY 0F OPTICAL BEAM PROPAGATION IN INHOMOGENEOUS MEDIA
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The coherent states representation and other methods of quantum mechanics are used to investigate the propagation of paraxial non-matched beams in an arbitrary, general quadratic and selfoctype inhomogeneous optical media. It is shown that In the selfoctype media there are such laws of index variation along the system axle which hare not any influence on beam parameters.
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I.M. Dremin , A.M. Orlov , E.I. Volkov ,
№ 120 REVIEW OF ТНE RESULTS OF THE MULTIPERIPHERAL CLUSTER SCHEME
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Compiled are the main results on high energy hadron processes obtained to date (June 1978) within the framework: of the multiperipheral cluster (both resonances and fireballs) scheme proposed and developed at Lebedev Physical Institute. They include the results of the analytic calculations, the elaboration of the definite model of inelastic processes based on these results, the computer Monte-Carlo simulation of inelastic events (with complete information about each particle) according to the model and their comparison with ail available experimental data of inelastic pp and tip interactions in the energy range from 28 to 200 GeV. It is demonstrated that the multiperipheral cluster mechanism of inelastic processes is strongly supported by experiment.
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Н.Б. Делоне , Б.А. Зон , М.В. Фёдоров ,
№ 123 ПОЛЯРИЗАЦИЯ ЯДЕР ПРИ МНОГОФОТОННОЙ РЕЗОНАНСНОЙ ИОНИЗАЦИИ АТОМОВ
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Here we consider the possibility of obtaining beams of polarized atomic nuclei with resonance ionization of atoms by circulary polarized electromagnetic radiation. Section 2 treats the principal conditions necessary to obtain polarized nuclei. While discussing the essential point of polarisation in the case of the resonance ionisation we consider the S-F-D transition in a hydrogen atom as an example. The general conditions of achieving selective transitions between superfine structure states are discussed. The requirements for the degree of monochrometicity, strength, and pulse duration of the exciting light field are clarified. Section 3 treats the quantitative characteristics for three cases when the superfine structure is allowed In the cut of both principal ground and excited states or one of them. The numerical results for H, Li6 and Li7 atone are given. The requirements for ionizing field are discussed. Section 4 gives some remarks on realization of the method of resonance ionization.
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D.I. Khomskii ,
№ 132 LOCAL EFFECTS AND VALENCE TRANSITIONS IN DOPED Sm MONOCHALCOGENIDES
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L.A. Bureyeva , A.M. Urnov ,
№ 133 DETERMINATION ОF HIGH TEMPERATURE PLASMA PARAMETERS FROM X-RAY SPECTRA
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A.M. Urnov ,
№ 134 DIELECTRONIC SATELLITE SPECTRE FOR HIGHLY-CHARGE IONS IN LABORATORY AND SOLAR PLASMA
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Theory is presented for dielectronic satellites of the x-ray ion lines in the framework of quantum scattering theoгу on the basis of the approach developed by Presyakov & Urnov (1975) for quasistetionary states in the Coulomb field. The electrostatic and electromagnetic fields are taken into account together
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Б.Л. Воронов , И.В. Тютин ,
№ 137 О КАЛИБРОВОЧНО-ИНВАРИАНТНОЙ ПЕРЕНОРМИРУЕМОСТИ КАЛИБРОВОЧНЫХ ТЕОРИЙ
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The problem of a gauge-invariant renormalizability of arbitrary gauge theories, renormalizable due to power counting, is considered. We distingwish between the gauge-invariant renormalizability In a wider sense, when Word identities, or a gauge invariance of the renormalized Lagrangean, are conserved, and the multiplicative gauge-invariant renormalizability.
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B.V. Somov ,
№ 144 HEAT TRAHSPORT IN SOLAR FLARES
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Radiative cooling and heat conduction. determine the temperature structure of flare plasmas along magnetic fields jt ia shown that both in the case of slow beating and of the impulsive one temperatures are distributed in such a way that the classica1 collisional heat conduction is valid.
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N.G. Basov ,
№ 153 PRINCIPLES OF HIGH POWER LASER CONSTRUCTIONS FOR CONTROLLED THERMONUCLEAR FUSION
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I.L. Beigman , R.A. Sanyaev ,
№ 163 THE HIGHLY EXOITED LEVEL POPULATIONS IN THE EXTERNAL PLANCK RADIATION FIELD
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A.D. Linde ,
№ 166 PHASE TRANSITIONS IN GAUGE THEORIES AND COSMOLOGY
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This is the second of the papers devoted to the phase transitions in gauge theories and cosmology. In this paper we discuss symmetry behaviour in gauge theories in the presence of external fields, effects connected with a fermion density increase and some cosmological consequences of the phase transitions in gauge theories.
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S.K. Machavariani , S.I. Nikolsky , V.P. Pavluchenko , V.I. Yakovlev ,
№ 168 ABOUT SHARP BREAKING OF SCALING IN THE NUCLON-NUCLEUS INTERACTIONS AT ENERGY REGION NEAR UNITARITY LIMIT.
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M.M. Chernyavsky , A.A. Komar , G.I. Orlova , M.T. Tretyakova ,
№ 175 A POSSIBLE EXAMPLE OF THE CHARMED PARTICLE DECAY INTO THE CHAHHEL B e+e- + HADRONS
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In the course of the analysis of the 600 stars, produced in nuclear emulsion by mesons with the momentum 200Gev/c, a secondary star 0+0+5p originated at the distance 42 from the primary star has been found, which contains an electron pair and possibly presents an example of the charmed baryon decay into the channel Вc e+e- + hadrone.
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V.P. Ageev , A.I. Barchukov , F.V. Bunkin , V.I. Konov , V.P. Korobeinikov , .. Putjatin , V.M. Hudjakov ,
№ 185 EXPERIMENTAL AND THEORETIICAL MODELLING OF LASER PROPULSION
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M.V. Fedorov , J.K. McIver ,
№ 192 On the theory of the free electron laser.
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A.M. Dunaevskii , Yu.A. Emelianov , B.F. Shorin , M.A. Tashimov , A.V. Urysson ,
№ 206 THE INFLUENCE OF HEAVY PRIMARIES ON THE NUCLEAR-ELECTROMAGNETIC CASCADES SIMULATION RESULTS. THE SPATIAL AND ENERGY CHARACTERISTICS OF FAMILIES.
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A.M. Dunaevskii , Yu.A. Emelianov , B.F. Shorin , A.V. Urysson ,
№ 207 TНЕ INFLUENCE OF TНЕ HEAVY PRIMARIES ON THE MICLEAR-ELECTKOMAGNETIIC CASCADES SIMUIATIOH RESULTS THE INTENSITIES OF -QUANTA AND -FAMILIES.
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F.V. Bunkin , M.A. Kazayan , M.A. Kondrat’ev , G.G. Petrash , A.M. Prokhorov , V.V. Savransky , I.N. Sisakyan , G.A. Sitnikov , K.I. Zemskov ,
№ 209 BIOLOGICAL LASER PROJECTION MICROSCOPE
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Some results of investigation of biological systems using laser projection microscope is given. The scheme permitted to work both in reflected and transmissing light. The image of a living sell on a large screen was observed.
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U.I. Safronova , A.M. Urnov , L.A. Vainstein ,
№ 212 DIELECTRONIC SATELLITES FOR HIGHLY CHARGED ION RESONANCE LINES
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R.G. Agaeva ,
№ 215 COHERENT STATES FOR OSCILLATOR WITH PARTICUTLAR ТIME DEPENDEСE OF FREQUNCY
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The exact solutions, coherent states and Green’s function are constructed and proper amplitudes and probabilities of transition are calculated for harmonic quantum oscillator with particular time dependence of frequency. Also for a charged particle, moving in time-dependent magnetic field, the expressions of transition probability are given. It is point out to one of the possible practical applications of the obtained results namely to the use Its for Interpretation of experiments on electron vibrated transitions in molecules.
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V.V. Dodonov , V.I. Man’ko , V.D. Skarzhinsky ,
№ 216 ARBITRARINESS IN THE CHOIGE OF ACTION AND QUANTIZATION OF THE GIVEN CLASSICAL EQUATIONS OF MOTION (HIGH ENERGY AND COSMIC RAYS PHYSICS)
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We analyzed the nonuniqueness of variational formulations (Lagrangians, Hamiltonians, actions) of a given system of classical equations of motion. We give a critical review of ideas and results on this matter up to this date. We show in a manifest way that this nonuniqueness leads to the existence of infinitely many different quantum systems corresponding to one and the same classical system. We suggest a new method of quantization based on the classical integrals of motion but free from Lagrangians and Hamiltonians. In the known cases our method is equivalent to the conventional ones. Finally we discuss possible criteria in the choice of the action! e.g. the additivity principle. Several examples (free particle, linear friction, particle in a magnetic field) are considered in detail.
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I.I. Roysen ,
№ 221 Some consequences of the unitarity and crossing for high energy scattering.
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E.A. Akhundova , V.V. Dodonov , V.I. Man’ko ,
№ 225 Exactly solvable nonlinear partial differential equations of the third order.
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Ю.И. Алексев , А.Д. Кузьмин , Ю.П. Шитов ,
№ 233 НОВЫЙ ДОЛГОПЕРИОДИЧЕСКИЙ ПУЛЬСАР
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Two new pulsars PSR 0320+39 and PSR 1839+56 are detected at Puschino Radio Astronomical Observatory of Lebedev Physical Institute. Both pulsars are rather strong at 102 MHz observing frequency. The peculiarities of PSH 0320+39 are long period 3.033 sec and high pulse energy, which allows ones to investigate the radio emission of individual pulses.
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V.I. Ritus ,
№ 242 Method eigenfuctions and mass operator in quantum electrodynamics of a constant field.
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S.G. Krivoshlykov , I.N. Sissakian ,
№ 245 Mode coupling between two multimode parabolig-index waveguides.
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S.G. Krivoshlykov ,
№ 246 Ocherent states of the two coupled oscillators system.
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Evident expressions for coherent states, the Green funetion, integrals of motion and Fock`s states of the two coupled quantum obcillators with different frequencies and masses are obtained. Quantum Lissajous figures are presented and connection with alassical macharics is discussed.
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I.M. Dremin , A.M. Orlov , E.I. Volkov ,
№ 247 REVIEW OF ТНE RESULTS OF THE MULT1PERIPHERAL CLUSTER SCHEME
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Compiled are the main results on high energy hadron processes obtained to data (June 1978) within the framework of the multiperipheral cluster (both resonances and fireballs) scheme proposed and developed at Lebedev Physical Institute. They include the results of the analytic calculations, the elaboration of the definite modal of inelastic processes based on these results, the computer Monte-Carlo simulation of inelastic events (with complete information about each particle) according to the nodal and their comparison with all available experimental data of inelastic pp and p interactions in the energy range from 26 to 200 GeV. It is demonstrated that the multiperipheral cluster mechanism of inelastic processes is strongly supported by experiment.
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A.I. Nikishov ,
№ 248 TRANSFERRED MOMENTUM DEPENDENCEOF THE CROSS SECTION FOR e+ e- PAIR PRODUCTION BY MUONS ON NUCLEI
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A.I. lvov , V.A. Petrunkin , S.A. Startsev ,
№ 254 FESR FOR DIFFERENCE OF NUOCLEON POLARIZABILITIES
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D.S. Chernavskii , A.A. Poleshaev , E.I. Volkov ,
№ 259 PROCESSES OF REGULATION OF NORMAL AND TUMOUR CELL IN ТНE LIMITS OF MEMBRANE MODEL OF THE CELL CYCLE.
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A mathematical nodal of regulation of cell division 1в suggested, the model is based on the hypothesis that the process giving rуthe to the cell division is located in the cell membrane. This process is the process of free-radical exidatien of membrane lipids. It depends much en the physical state of the membrane. In the membrane phase transitions take place due to the change of Its lipid composition. These transitions differ in normal and tumour cells: in normal ones they are sharp and hysteresis owing to the presence of a framework on the surface of the membrane, while in tumour ones the integrity of the latter la violated and so the transitions are smooth. This modal makes it possible to explane difference in regulation of normal and cancer cells.
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O.V. Dolgov , D.A. Kirznits , E.G. Maksimov ,
№ 278 ON AN ADMISSIBLE SIGN OF THE STATIC DIELECTRIC FUNCTION OF MATTER
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