A Dynamical Cosmological Term from the Verlinde's Maps

In this letter it is proposed another generalization of the Verlinde's maps for the case $\Lambda \neq 0$. Thermodynamical arguments combined with this proposal conduce to a inverse square-law cosmological term behavior.Comment: 7 pages, minor changes added. v3: Minor changes in title, content and style; acknowledgments and references added; v4 Minor changes and references adde

Corrections to the Entropy in Higher Order Gravity

Thermal corrections to the entropy of black holes in the Lovelock gravity are calculated. As the thermodynamic behavior of the black holes of this theory falls into two classes, the thermodynamic quantities are computed in each case. Finally, the logarithmic prefactors are obtained in two different limits.Comment: 11 pages. Comments and references added.v3.Minor changes in content and style, Proceedings of the Conference 100 Years of Relativity, Sao Paulo, Brazil, August 200

VCS Experiment - Radiative corrections

In this note we summarise the set of radiative corrections in photon-electroproduction process experiments. Then we describe and compare the different ways to determine and apply those corrections in a particular kinematical setting of our VCS experiment

Quasinormal Modes of Bardeen Black Hole: Scalar Perturbations

The purpose of this paper is to study quasinormal modes (QNM) of the Bardeen black hole due to scalar perturbations. We have done a thorough analysis of the QNM frequencies by varying the charge $q$, mass $M$ and the spherical harmonic index $l$. The unstable null geodesics are used to compute the QNM's in the eikonal limit. Furthermore, massive scalar field modes are also studied by varying the mass of the field. Comparisons are done with the QNM frequencies of the Reissner-Nordstrom black hole.Comment: 25 figures, Published in Physical Review D. Reference numbers correcte