Showing papers in "Annals of Physics in 2000"

TL;DR: In this paper, the minimal effective chiral pion-nucleon SU(2) Lagrangian at fourth order in the chiral expansion was constructed and the relativistic and heavy baryon formulation of the effective field theory was developed.

TL;DR: In this paper, the authors investigated the asymptotic dynamics and symmetries of all three-dimensional extended AdS supergravity models and derived the super-Liouville action by solving the Chern-Simons theory and obtained a realization of the superconformal algebras in terms of super Liouville fields.

TL;DR: The renormalization of chiral perturbation theory is carried out to next-to-next-to leading order in the meson sector in this article, where the divergent part of the generating functional of Green functions of quark currents is calculated to O(p6) for chiral SU(n), involving one-and two-loop diagrams.

TL;DR: In this paper, a systematic treatment of color superconductivity in the instanton model is provided, and it is shown that the structure of the superconductor depends on the number of flavors.

TL;DR: In this article, the algebraic treatment of baryons is extended to strange resonances, and a collective string-like model in which the radial excitations are interpreted as rotations and vibrations of the strings is studied.

TL;DR: In this paper, the real and virtual photon production rate from strongly interacting matter is presented in the framework of finite temperature field theory and the changes in the hadronic spectral function induced by temperature are discussed within the ambit of the Walecka type model, gauged linear and non-linear sigma models, hidden local symmetry approach, and QCD sum rule approach.

TL;DR: In this article, the same authors recast the gravitational field equations for static spherically symmetric perfect fluid models with a polytropic equation of state, p=kρ1+1/n, into two complementary 3-dimensional regular systems of ordinary differential equations on compact state spaces.

TL;DR: In this paper, Bazeia and Jackiw associate this dynamical symmetry to a novel type of field-dependent action on space-time and derive the associated conserved quantities.

TL;DR: In this article, the authors present a model at tree level with a Higgs sector containing one bidoublet and two triplets, and the canonical quantization and Faddeev-Popov Lagrangian are carried out ('t Hooft gauge').

TL;DR: In this article, the renormalization group (RG) method is formulated in terms of the notion of invariant manifolds, which is analogous to the Wilsonian RG equations in statistical physics and quantum field theory.

TL;DR: In this article, the authors construct locally gauge invariant charged fields which do create in and out Fock states and demonstrate that the Green's functions of these fields have a good pole structure describing particle propagation.

TL;DR: In this article, the spectral determinant of the Laplacian on finite graphs characterized by their number of vertices V and bonds B was studied. And the results were generalized to the case of graphs in a magnetic field.

TL;DR: Using matrix-valued Wigner functions, the authors showed that the electron follows with high precision the classical orbit and that the spin precesses according to the BMT equation with gyromagnetic ratio g=2.

TL;DR: In this paper, it is shown that the on-shell Green's functions and S-matrix elements describing these charged fields have, to all orders in the coupling, the pole structure associated with particle propagation and scattering.

TL;DR: In this paper, the authors make the first steps toward a generic theory for energy spreading and quantum dissipation, where the authors assume a time-dependent Hamiltonian H ( Q, P ; x ( t )) with x (t )= Vt, where V is slow in a classical sense.

TL;DR: In this article, a three-dimensional Lagrangian field theory is investigated as the T (3)-gauge model of static defects in continuous solids, and the nonconventional incompatibility law is given by an Einstein-like gauge equation with the elastic stress tensor as a matter source.

TL;DR: In this article, the authors recast Einstein's field equations, for static spherically symmetric perfect fluid models with a linear barotropic equation of state, into a 3-dimensional regular system of ordinary differential equations on a compact state space.

TL;DR: In this paper, the relation between the R- and P-matrix approaches and the harmonic oscillator representation of the quantum scattering theory is discussed, and the natural channel radius is introduced.

TL;DR: In this article, a relativistic brane propagating in Minkowski spacetime described by any action which is local in its worldvolume geometry is examined. And the conservation laws associated with the Poincare symmetry of the background from a worldvolume geometrical point of view are exploited to explore the structure of the equations of motion.

TL;DR: In this paper, the electromagnetic field of a charged particle with hyperbolic motion is described and the question whether the charged particle emits radiation is briefly touched upon in the first article in a series on the electrodynamics of radiating particles and their fields.

TL;DR: In this article, the conformal Einstein equations for massless collisionless gas cosmologies admit an isotropic singularity are considered and it is shown that the Cauchy problem for these equations is well posed with data consisting of the limiting particle distribution function at the singularity.

TL;DR: In this paper, the authors extended the 1+3 covariant and gauge-invariant treatment of kinetic theory to an examination of cosmic microwave background temperature anisotropies arising from inhomogeneities in the early universe.

TL;DR: In this paper, the equivalence between various approaches to field quantization commonly used in the framework of curved backgrounds is illustrated, using Rindler coordinates, the quantization of a charged scalar field interacting with a constant (Poincare invariant), external, electric field in (1+1) dimensionnal flatspace.

TL;DR: In this paper, a massless spinor field is quantized in the background of a singular static magnetic vortex in 2+1-dimensional space-time, and the method of self-adjoint extensions is employed to define the most general set of physically acceptable boundary conditions at the location of the vortex.

TL;DR: In this paper, a unified description of collective nuclear states in terms of a system of interacting bosons was proposed, and it was shown that within this model both the vibrational and the rotational limit can be recovered.

TL;DR: In this paper, it was shown that if n alternates rapidly between large positive and large negative values, the stability of both radial and vertical oscillations can be greatly increased compared to conventional accelerators in which n is azimuthally constant and must lie between 0 and 1.

TL;DR: In this paper, a re-examination of Eddington's classic calculation of energy loss by a spinning rod is provided, where the derivative of the missing stress-trace integral is computed, and hence the energy of the rod is conserved, in support of the localization hypothesis.

TL;DR: In this paper, a geometrical framework for the definition of entropy in general relativity via the Nother theorem is briefly recalled, and the entropy of Taub-Bolt Euclidean solutions of Einstein equations is then obtained as an application.

TL;DR: In this article, a subclass of dynamical semigroups induced by the interaction of a quantum system with an environment is introduced, which leads to the selection of a stable subalgebra of effective observables.

TL;DR: In this article, the Schott field is separated into a near field and a radiation field, and the physical significance of a plane acting as a barrier for transport of energy in the field of a charge with permanent hyperbolic motion is discussed.