Showing papers in "Physics Letters A in 1977"

TL;DR: In this paper, it was shown how self-dual gauge fields correspond to certain complex vector bundles, which leads to a procedure for generating selfdual solutions of the Yang-Mills field equations.

TL;DR: In this article, it was shown that two-dimensional solitons do not interact at all, unlike one-dimensional ones, and explicit analytic formulae for 2D solitions are given.

TL;DR: In this paper, it was shown that the one-dimensional classical spins with nearest neighbor Heisenberg interaction is an exactly solvable system and its dynamics describable by the nonlinear Schrodinger equation.

TL;DR: In this article, the inverse scattering method is applied to the Heisenberg chain, and the general scheme of the solution of the equations of motion is given, along with the existence of an infinite series of constants of motion.

TL;DR: In this article, it was shown that the energy density must diverge at least as fast as 1/t along certain null geodesics near a strong curvature singularity in any conformally flat spacetime.

TL;DR: In this paper, the free electron laser is analyzed by solving the one-body classical Lorentz force equation in the presence of periodic magnetic field and a plane electromagnetic wave, and phase space paths for electrons are related to those of a simple pendulum and describe laser gain, saturation, and coherent electron beam modulation.

TL;DR: In this paper, the Mayer-Salpeter nodal expansion was extended to two-components high-temperature plasmas, and the expansion was applied to a two-dimensional (2D) case.

TL;DR: For collision energies below 25 keV/amu cross sections for the transfer of up to 4 electrons in single collisions between multiply charged ions and neutral atoms and molecules, empirical scaling laws are approximated by scaling laws as discussed by the authors.

TL;DR: In this article, the authors discuss the interaction of Ultra-Cold and Cold Neutrons with superfluid 4He and show that this interaction has all the characteristics which are necessary for the achievement of extremely high densities of UCN.

TL;DR: In this article, the Baxter model was modeled as a pair-interaction Ising model in two dimensions and the interaction-dependent critical point exponents of the model were derived.

TL;DR: In this article, the growth behavior of yeast cultures in aqueous suspension was monitored by visible light extinction and showed an exponential growth rate reproducible within ±3% limits when the cultures were irradiated by c.w. microwave fields of a few mW/cm2.

TL;DR: In this paper, the masses and number of neutral weakly interacting particles are derived using cosmological arguments, and it is shown that no such particles with a mass between 120 eV and 3 GeV can exist within the usual big band model.

TL;DR: By writing the perturbed Korteweg-de Vries equation (1) in operator form (2), this article derived equations which are a basis for a perturbation method.

TL;DR: In this article, an exact one-particle-irreducible renormalization-group generator for critical phenomena is derived by an infinitesimal saddle-point expansion, which replaces the usual field-theoretic loop-expansion for the free energy and Green's functions with an explicit differential equation.

TL;DR: Tungsten radiation from the Oak Ridge tokamak has been identified by comparing experimental results to calculated spectra for ions having open 4D subshells as mentioned in this paper, and the concentrations of tungsten are estimated from computed oscillator strengths to be of the order of 10−3ne.

TL;DR: Mossbauer et al. as discussed by the authors used X-ray spectra for taenite lamellae from the iron meteorite Cape York to detect an ordered phase with the composition FeNi and with the structure L10.

TL;DR: The dielectric absorption of vitreous silica containing 1200 ppm of OH − -impurities has been measured at 10 GHz in the temperature range between 0.4 K and 8 K.

TL;DR: In this paper, it was shown that phase transitions can be induced by external noise, even above the critical point of the phase transition, without the need of a phase transition model.

TL;DR: In this article, the theory of trapping into quantum nonlinear resonance when the coherent field interacts with molecules was developed. And the oscillation spectrum structure of probability amplitudes was obtained. But the theory was not extended to the case of quantum non-linear resonance.

TL;DR: In this paper, the isotropic and anisotropic molecular properties of p-disubstituted phenylcyclohexane are compared to the properties of known liquid crystals.

TL;DR: In this article, a helical divertor was proposed, which utilizes a resonance effect, and reduces the required divertor currents to a small fraction (typically 10 -2 ) of the plasma current.

TL;DR: The existence of soliton solution in one-dimensional ferromagnetic chain due to the magnon-magnon interaction was shown in this article, where the existence of the soliton soliton was shown to be true in the case of a single element.

TL;DR: In this article, the ratio R of the intensities of anti Stokes and Stokes Raman shift lines of 124 cm -1 and of 118 cm −1 of active E. coli B was measured and it was shown that this system is excited strongly above thermal excitation.

TL;DR: The volume change of niobium and tantalum due to interstitially dissolved hydrogen and deuterium has been determined by means of X-ray Bragg scattering.

TL;DR: In this article, a new 64 detector angular correlation of annihilation radiation (ACAR) apparatus is described permitting the first complete two-dimensional ACAR surface measurements on oriented crystals of quartz, aluminum and copper.

TL;DR: In this article, the laser-Raman spectra of active bacterial cells indicate that resonances between 7 × 1010 and 5 × 1012 Hz exist in these cells, while these frequencies are not present in resting cells, of cell homogenates or of the nutrient; thus they seem to be produced as a result of active in-vivo metabolic processes.

TL;DR: In this paper, lines of highly ionized molybdenum (originating from the limiter) were observed in the TFR spectrum between 5 and 50 A. Identification was performed by comparison with a spark spectrum and ab initio relativistic calculations.

TL;DR: In this article, the authors studied the basal plane of ice in thermodynamic equilibrium with the vapor by means of 100 keV proton channeling between −130°C and −2°C.

TL;DR: A microscopic approach to Frohlich's theory of Bose condensation in biological systems is discussed in this article, where the conclusions from this microscopic analysis offer further support for the hypothesis.

TL;DR: In this paper, the partition function for a simple harmonic oscillator and the fermion equivalent was evaluated using a path integral technique based upon generalized zeta functions, and the result showed that the partition functions for the harmonic oscillators and fermions are similar.