314 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Ain Shams UniversityEG110 papers
- University of SouthamptonGB108 papers
- Rutherford Appleton LaboratoryGB80 papers
- Texas A&M UniversityUS76 papers
- Université Libre de BruxellesBE74 papers
- Florida Institute of TechnologyUS73 papers
- Panjab UniversityIN73 papers
- University of DelhiIN73 papers
- University of SeoulKR73 papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT72 papers
- Lappeenranta-Lahti University of TechnologyFI72 papers
- Universidad de AntioquiaCO72 papers
13 papers · 1 filter
Brane-Worlds and the Calabi-Yau Complex Structure Moduli
Moataz H. Emam, H. H. Salah, Safinaz Salem
In this paper we extend previous work on the relation between the complex structure moduli of the underlying Calabi-Yau manifold in five dimensional supergravity with the time evol…
Gauge-Field-Induced Torsion and Cosmic Inflation
Ammar Kasem, Shaaban Khalil
Inflation in the framework of Einstein-Cartan theory is revisited. Einstein-Cartan theory is a natural extension of the General Relativity, with non-vanishing torsion. The connecti…
Generalized Uncertainty Principle as a Consequence of the Effective Field Theory
Mir Faizal, Ahmed Farag Ali, Ali Nassar
We will demonstrate that the generalized uncertainty principle exists because of the derivative expansion in the effective field theories. This is because, in the framework of the…
Sneutrino driven GUT Inflation in Supergravity
Tomas E. Gonzalo, Lucien Heurtier, Ahmad Moursy
In this paper, we embed the model of flipped GUT sneutrino inflation -in a flipped SU(5) or SO(10) set up- developed by Ellis et al. in a supergravity framework. The GUT symmetry i…
A viable logarithmic f(R) model for inflation
M. Amin, S. Khalil, M. Salah
Inflation in the framework of modified gravity is revisited. We study the conditions that should satisfy in order to lead to a viable inflationary model in the origin…
Two-dimensional conformal field theories with matrix-valued level
Ali Nassar
We introduce a new class of two dimensional conformal field theories by extending Wess-Zumino-Witten (WZW) models to chiral algebras with matrix-valued levels. The new CFTs are bas…
Remnant for all Black Objects due to Gravity's Rainbow
Ahmed Farag Ali, Mir Faizal, Mohammed M. Khalil
We argue that a remnant is formed for all black objects in gravity's rainbow. This will be based on the observation that a remnant depends critically on the structure of the rainbo…
Absence of Black Holes at LHC due to Gravity's Rainbow
Ahmed Farag Ali, Mir Faizal, Mohammed M. Khalil
In this paper, we investigate the effect of Planckian deformation of quantum gravity on the production of black holes at colliders using the framework of gravity's rainbow. We demo…
Remnants of Black Rings from Gravity's Rainbow
Ahmed Farag Ali, Mir Faizal, Mohammed M. Khalil
In this paper, we investigate a spinning black ring and a charged black ring in the context of gravity's rainbow. By incorporating rainbow functions proposed by Amelino-Camelia, et…
AdS/CFT Correspondence Beyond its Supergravity Approximation
Mir Faizal, Ahmed Farag Ali, Ali Nassar
We will study the AdS/CFT correspondence in an intermediate region between the strong form of this correspondence (string theory on AdS being dual to a boundary CFT), and the weak…
Black Hole Remnant from Gravity's Rainbow
Ahmed Farag Ali
In this work, we investigate black hole (BH) physics in the context of gravity rainbow. We investigate this through rainbow functions that have been proposed by Amelino-Camelia, et…
Emergence of Cosmic Space and Minimal Length in Quantum Gravity
Ahmed Farag Ali
An emergence of cosmic space has been suggested by Padmanabhan in [arXiv:1206.4916]. This new interesting approach argues that the expansion of the universe is due to the differenc…
Energy functionals for Calabi-Yau metrics
Matthew Headrick, Ali Nassar
We identify a set of "energy" functionals on the space of metrics in a given Kaehler class on a Calabi-Yau manifold, which are bounded below and minimized uniquely on the Ricci-fla…