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- Institute for Research in Fundamental SciencesIR62 papers
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19 papers · 1 filter
Holographic Entanglement Entropy for Excited States in Two Dimensional CFT
Amin Faraji Astaneh, Amir Esmaeil Mosaffa
We use holographic methods to study the entanglement entropy for excited states in a two dimensional conformal field theory. The entangling area is a single interval and the excita…
Translational-invariant noncommutative gauge theory
F. Ardalan, N. Sadooghi
A generalized translational invariant noncommutative field theory is analyzed in detail, and a complete description of translational invariant noncommutative structures is worked o…
Holographic Phase Transition to Topological Dyons
Davood Allahbakhshi, Farhad Ardalan
The dynamical stability of a Julia-Zee solution in the AdS background in a four dimensional Einstein-Yang-Mills-Higgs theory is studied. We find that the model with a vanishing sca…
On Born-Infeld Gravity in Three Dimensions
Mohsen Alishahiha, Ali Naseh, Hesam Soltanpanahi
In this paper we explore different aspects of three dimensional Born-Infeld as well as Born-Infeld-Chern-Simons gravity. We show that the models have AdS and AdS-wave vacuum soluti…
No Large Scale Curvature Perturbations during Waterfall of Hybrid Inflation
Ali Akbar Abolhasani, Hassan Firouzjahi
In this paper the possibility of generating large scale curvature perturbations induced from the entropic perturbations during the waterfall phase transition of standard hybrid inf…
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…