Now showing items 1-10 of 26
THE PARTITION-FUNCTION FOR AN ANYON-LIKE OSCILLATOR
(Journal of Physics A: Mathematical and General, 1995-01-07) [Carta]
We compute the partition function of an anyon-like harmonic oscillator. The well known results for both the bosonic and fermionic oscillators are then re-obtained as particular cases of our function. The technique we employ ...
Quartic fermion self-interactions in two-dimensional gauge theories
(Physical Review D: Particles, Fields, Gravitation and Cosmology, 1997-04-15) [Artigo]
In this work we discuss the effect of quartic fermion self-interacting terms on the dynamically generated photon masses in 1+1 dimensions, for vector, chiral, and non-Abelian couplings. In the vector and chiral cases we ...
BRST-BFV formalism for the generalized Schwinger model
(Zeitschrift fur Physik C: Particles and Fields, 1997-07-01) [Artigo]
We derive the Wess-Zumino scalar term of the generalized Schwinger model both in the singular and nonsingular cases by using BRST-BFV framework. The photon propagators are also computed in the extended Lorentz gauge.
COMPARISON OF THE ANOMALOUS AND NONANOMALOUS GENERALIZED SCHWINGER MODELS VIA THE FUNCTIONAL FORMALISM
(International Journal of Modern Physics A, 1994-05-20) [Artigo]
We calculate the Green functions of the two versions of the generalized Schwinger model, the anomalous and the nonanomalous one, in their higher order Lagrangian density form. Furthermore, it is shown through a sequence ...
On the quantum mechanical propagator for driven coupled harmonic oscillators
(Journal of Physics A: Mathematical and General, 1992-08-07) [Artigo]
The exact propagator beyond and at caustics for a pair of coupled and driven oscillators with different frequencies and masses is calculated using the path-integral approach. The exact wavefunctions and energies are also ...
CHIRAL SCHWINGER MODEL WITH A PODOLSKY TERM AT FINITE-TEMPERATURE
(Zeitschrift fur Physik C: Particles and Fields, 1995-08-01) [Artigo]
We study an exactly solvable two-dimensional model which mimics the basic features of the standard model. This model combines chiral coupling with an infrared behavior which resembles low energy QCD. This is done by adding ...
(International Journal of Modern Physics A, 1996-12-01) [Artigo]
We consider an extension of the axial model where local gauge symmetries are taken into account. The result is a mixing of the axial and Schwinger models. The anomaly of the axial current is calculated by means of the ...
Strong-weak coupling duality symmetry in quantum mechanics
(Group 21 - Physical Applications and Mathematical Aspects of Geometry, Groups, and Algebra, Vols 1 and 2, 1997-01-01) [Trabalho apresentado em evento]
So(2,1) Lie algebra and the Green's functions for the conditionally exactly solvable potentials
(Physical Review A, 1994-12-01) [Artigo]
The Green's functions of the recently discovered conditionally exactly solvable potentials are computed. This is done through the use of a second-order differential realization of the so(2,1) Lie algebra. So we present the ...
The propagator for a charged oscillator with a time-dependent mass in a time-varying electromagnetic field
(Physics Letters A, 1991-07-01) [Artigo]
We make a change of variables and a time reparametrization in the Schrödinger equation in order to obtain the propagator of a charged oscillator with a time-dependent mass and frequency under the influence of time-varying ...