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5 papers · 2 filters
Magnetic Strings in Einstein-Born-Infeld-Dilaton Gravity
M. H. Dehghani, A. Sheykhi, S. H. Hendi
A class of spinning magnetic string in 4-dimensional Einstein-dilaton gravity with Liouville type potential which produces a longitudinal nonlinear electromagnetic field is present…
String inspired explanation for the super-acceleration of our universe
Ahmad Sheykhi, Bin Wang, Nematollah Riazi
We investigate the effect of the bulk content in the general Gauss-Bonnet braneworld on the evolution of the universe. We find that the Gauss-Bonnet term and the combination of the…
Boundary Conditions in Stepwise Sine-Gordon Equation and Multi-Soliton Solutions
N. Riazi, A. Sheykhi
We study the stepwise sine-Gordon equation, in which the system parameter is different for positive and negative values of the scalar field. By applying appropriate boundary condit…
Deep Connection Between Thermodynamics and Gravity in Gauss-Bonnet Braneworld
Ahmad Sheykhi, Bin Wang, Rong-Gen Cai
We disclose the deep connection between the thermodynamics and gravity in a general braneworld model with curvature correction terms on the brane and in the bulk, respectively. We…
Thermodynamical Properties of Apparent Horizon in Warped DGP Braneworld
Ahmad Sheykhi, Bin Wang, Rong-Gen Cai
In this paper we first obtain Friedmann equations for the -dimensional brane embedded in the -dimensional bulk, with intrinsic curvature term of the brane included in…