Showing papers in "Physics Reports in 1990"

TL;DR: In this article, the authors consider the specific effects of a bias on anomalous diffusion, and discuss the generalizations of Einstein's relation in the presence of disorder, and illustrate the theoretical models by describing many physical situations where anomalous (non-Brownian) diffusion laws have been observed or could be observed.

TL;DR: In this paper, the statistical properties of quantum chaos are considered on the basis of the well-known model of a kicked rotator and the quasienergy spectrum and the structure of the eigenfunctions in the case of strong classical chaos.

TL;DR: In this article, the quantum dynamics of tunnel junctions with very small capacitance, such that kBT is kBT, is studied. But the authors do not consider the case of tunnel junction with high capacitance.

TL;DR: The statistical description of a system containing a large number of particles which interact via Newtonian gravity is discussed in this paper, which exhibits several peculiarities due to the long range, unshielded nature of the gravitational interaction.

TL;DR: In this article, the authors review the theoretical methods as well as the observational data that have been employed in order to use stars as "particle physics laboratories" in the spirit of this argument.

TL;DR: In this article, the role of toroid moments and average 2n-power radii in the structure of multipole expansions in the framework of Maxwell-Lorentz electrodynamics is explained.

TL;DR: In this paper, it was shown that the axion mass can be computed at an energy scale of about 10 4 eV, leaving open only two windows for further exploration: 10 −6 eV ≲ m a ≲ 10 −3 eV and 2 eV approximating m a −5 eV (hadronic axions only).

TL;DR: The spectral geometry of homogeneous and, in particular, of symmetric spaces is considered in this paper, with explicit calculations of the heat kernel and the zeta function, and several topics relevant to physical applications are discussed, including the Schwinger-DeWitt expansion, the exactness of the WKB approximation in curved spaces, the connection between free motion on symmetric and quantum integrable systems, and finite-temperature quantum field theories in higher dimensions.

TL;DR: There is increasing interest in the possibility of setting up terrestrial experiments for the direct detection of galactic dark matter on the hypothesis that this may consist of new types of elementary particle as discussed by the authors.

TL;DR: In this article, the authors reviewed the data and theory relevant to understand charge symmetry breaking in hadronic mass spittings, interactions and decay rates; nucleon-nucleon interactions; nuclear reactions; and binding energies of mirror nuclei.

TL;DR: In this article, the authors describe the time evolution of the nuclear many-body system within a nonperturbative transport approach as well as the methods employed for the evaluation of the elementary nucleon-nucleon-particle cross sections.

TL;DR: In this paper, the Anderson model is used to solve the charge transfer problem for an atom with a non-degenerate orbital, whose coupling to the surface is described by Anderson model.

TL;DR: In this article, the basic concepts of multiple reflection X-ray optics were formulated and a broad angular aperture was shown, i.e., of the order of many times the angles of total external reflection.

TL;DR: In this article, the authors follow and continue the line of Bibermanl, Fujimoto, and Seaton by trying to find a classification in these results and find a (analytical) relation between the atomic state distribution function and the underlying plasma properties.

TL;DR: In this paper, a review mainly concentrates on the properties of pion degrees of freedom in nuclear and neutron matter, and deals with various phenomena in atomic nuclei and neutron stars for which pion mode softening plays an important part.

TL;DR: A comprehensive overview of electron cooling can be found in this paper, where the authors present a comprehensive coverage of the subject and summarizes the present knowledge. And they discuss possible future developments and refinements of the method, as well as the application of the merged parallel-beam arrangement for atomic physics.

TL;DR: In this paper, a dressing laser can embed a low-lying atomic state into a flat continuum to produce a tunable resonance of adjustable width, and the effects of laser phase fluctuations on the interference phenomena responsible for LICS are included in both semiclassical Wiener-Levy and fullyquantum mechanical theories of multiplicative stochastic processes.

TL;DR: In this paper, a general transport equation is proposed which includes energy spreading effects, and a number of specific kinetic equations which are the non-equilibrium versions of well-known many-body theories for equilibrated nuclear matter are discussed.

TL;DR: A review of the current status of liquid flow velocity studies by pulsed nuclear magnetic resonance (NMR) is given in this paper, where the effects of flow on the NMR signal and different kinds of experiments are discussed.

TL;DR: In this paper, a precise definition of chaos in the context of differential equations is proposed, and the history of subsequent developments of these ideas by Birkhoff, Cartwright, Littlewood, Levinson and Smale is described.

TL;DR: In this article, the authors present a microscopic approach to large cross section physics at high energy, based on the leading logarithmic approximation of perturbative QCD and the reggeon diagram technique.

TL;DR: In this paper, a review of large-N expansion methods is presented, including perturbed oscillator methods, Riccati equation methods, pseudospin methods and collective field methods.

TL;DR: In this article, the intrinsic stochasticity of the particle motions is analyzed for several types of drift wave systems, and the resulting diffusivities are applied to several tokamaks.

TL;DR: In this paper, the effect of an external magnetic field, magnetic anisotropy, energy dissipation and finite dimensions of the sample on the propagation of nonlinear electromagnetic-spin waves is considered.

TL;DR: In this article, the authors review microscopic models for small-amplitude nuclear motion within the framework of extended RPA theories which include 1p1h as well as 2p2h excitations in a consistent way.

TL;DR: The effects of nuclear spallation, production of radioactive nuclides and the time dependence of their decay provide valuable information on the acceleration and propagation of cosmic rays, their nuclear transformations, and their confinement time in the Galaxy.

TL;DR: In this paper, a survey of the application of the inverse scattering transform technique to self-induced transparency models with degenerate energy levels (two-and three-level configurations), models with nonresonant self-interaction, and models of two-photon resonance is presented.