4,234 research outputs found
Two-dimensional Lorentz-violating Chern-Simons-like action
We demonstrate generation of the two-dimensional Chern-Simons-like
Lorentz-breaking action via an appropriate Lorentz-breaking coupling of scalar
and spinor fields at zero as well as at the finite temperature and via the
noncommutative fields method and study the dispersion relations corresponding
to this action.Comment: 10 pages, references added, version accepted to Physics Letters
Comment on "Energies of the ground state and first excited in an exactly solvable pairing model"
We comment on a recent application of the RPA method and its extensions to
the case of the two-level pairing model by N. Dinh Dang [1].Comment: 5 pages, 1 figure, submitted to EPJ
Quantum-corrected self-dual black hole entropy in tunneling formalism with GUP
In this paper we focus on the Hamilton-Jacobi method to determine the entropy
of a self-dual black hole by using linear and quadratic GUPs(generalized
uncertainty principles). We have obtained the Bekenstein-Hawking entropy of
self-dual black holes and its quantum corrections that are logarithm and also
of several other types.Comment: Latex, 7 pages, no figure. Version to appear in PLB. arXiv admin
note: substantial text overlap with arXiv:1502.0017
Gravitational Aharonov-Bohm effect due to noncommutative BTZ black hole
In this paper we consider the scattering of massless planar scalar waves by a
noncommutative BTZ black hole. We compute the differential cross section via
the partial wave approach, and we mainly show that the scattering of planar
waves leads to a modified Aharonov-Bohm effect due to spacetime
noncommutativityComment: 6 pages, latex, no figures. To appear in PLB. arXiv admin note:
substantial text overlap with arXiv:1210.773
Helix surfaces in the special linear group
We characterize helix surfaces (constant angle surfaces) in the special
linear group . In particular, we give an explicit local
description of these surfaces in terms of a suitable curve and a 1-parameter
family of isometries of .Comment: Minor corrections. To appear in Annali di Matematica Pura e
Applicata. arXiv admin note: substantial text overlap with arXiv:1206.127
- …