6 papers · 1 filter
3-Form Flux Compactification of Salam-Sezgin Supergravity
Hamid Reza Afshar, Shahrokh Parvizi
The compactification of 6 dimensional Salam-Sezgin model in the presence of 3-form flux H is investigated. We find a torus topology for this compactification with two cusps which a…
Partition function of non-supersymmetric black holes in the supergravity limit
Shahrokh Parvizi, Alireza Tavanfar
In this note, we propose the free energy of general \emph{non-supersymmetric} black hole attractors arising in type IIA(B) superstrings on 3-fold Calabi-Yau, in the supergravity li…
Non-Supersymmetric Attractors in Gravities
B. Chandrasekhar, S. Parvizi, A. Tavanfar +1
We investigate the attractor mechanism for spherically symmetric extremal black holes in a theory of general gravity in 4-dimensions, coupled to gauge fields and moduli field…
AdS/CFT correspondence via R-current correlation functions revisited
Shahin Mamedov, Shahrokh Parvizi
Motivated by realizing open/closed string duality in the work by Gopakumar [Phys. Rev. D70:025009,2004], we study two and three-point correlation functions of R-current vector fiel…
N=1/2 Super Yang-Mills Theory on Euclidean AdS2xS2
Ali Imaanpur, Shahrokh Parvizi
We study D-branes in the background of Euclidean AdS2xS2 with a graviphoton field turned on. As the background is not Ricci flat, the graviphoton field must have both self-dual and…
D-Particle Feynman Graphs And Their Amplitudes
Shahrokh Parvizi, Amir H. Fatollahi
It is argued that quantum traveling of D-particles presents the ``joining-splitting'' processes of field theory Feynman graphs. The amplitudes in dimensions can be corresponded…