156 research outputs found
Construction of a Massive ABJM Theory Without Higgs Superfields
A massive Aharony-Bergman-Jafferis-Maldacena (ABJM) model in
superspace is analysed by considering a Proca type mass term into the most
general Faddeev-Popov action in a covariant gauge. The presence of mass term
breaks the original BRST and anti-BRST invariance of the model. Further, the
symmetry of the massive ABJM model is restored by extending the BRST and
anti-BRST transformations. We show that the supergauge dependence of generating
functional for connected diagrams occurs in presence of mass and
ghost-anti-ghost condensates in the theory.Comment: 9 pages, no figur
N=1 super-Chern-Simons theory in Batalin-Vilkovisky formulation
We analyse the Abelian super-Chern-Simons model coupled to
parity-preserving matter in linear and non-linear gauges with exact BRST
invariance. Then we analyse the theory in field/antifield formulation to
discuss the model at quantum level. Furthermore, we implement the
field/antifield dependent transformation parameter to generalize the BRST
symmetry of the theory. The novelty of field/antifield dependent BRST
transformation is that under change of variable the Jacobian of the functional
integral extends the quantum action from linear gauge to non-linear gauge. The
results are established in full generality.Comment: 7 pages, no figure, Version to appear in EP
Quantum corrections to thermodynamics of quasitopological black holes
Based on the modification to area-law due to thermal fluctuation at small
horizon radius, we investigate the thermodynamics of charged quasitopological
and charged rotating quasitopological black holes. In particular, we derive the
leading-order corrections to the Gibbs free energy, charge and total mass
densities. In order to analyse the behavior of the thermal fluctuations on the
thermodynamics of small black holes, we draw a comparative analysis between the
first-order corrected and original thermodynamical quantities. We also examine
the stability and bound points of such black holes under effect of
leading-order corrections.Comment: 15 pages, 20 captioned figures, to appear in Phys. Lett.
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