9,746 research outputs found
Comment on Gauge-Independent Analysis of Chern-Simons Theory with Matter Coupling
It is shown that a recently proposed relativistic field theory of anyons is
mathematically flawed and also does not satisfy reasonable criteria for such a
theory.Comment: 4 page
Soluble field theory with a massless gauge invariant limit
It is shown that there exists a soluble four parameter model in (1+1)
dimensions all of whose propagators can be determined in terms of the
corresponding known propagators of the vector coupling theory. Unlike the
latter case, however, the limit of zero bare mass is nonsingular and yields a
nontrivial theory with a rigorously unbroken gauge invariance.Comment: 7 pages, revtex, no figure
Comment on "Attractive Forces between Electrons in 2 + 1 Dimensional QED"
It is shown that a model recently proposed for numerical calculations of
bound states in QED is in fact an improper truncation of the Aharonov-Bohm
potential.Comment: 4 page
Cutoff dependence of the Casimir effect
The problem of calculating the Casimir force on two conducting planes by
means of the stress tensor is examined. The evaluation of this quantity is
carried out using an explicit regularization procedure which has its origin in
the underlying (2+1) dimensional Poincar\'{e} invariance of the system. The
force between the planes is found to depend on the ratio of two independent
cutoff parameters, thereby rendering any prediction for the Casimir effect an
explicit function of the particular calculational scheme employed. Similar
results are shown to obtain in the case of the conducting sphere.Comment: 7 pages, revtex, no figure
- …