225 citations · 1k across the 39 of their papers we have counts for
5 papers · 1 filter
Non-critical anisotropic Bianchi type string cosmology with -corrections
F. Naderi, A. Rezaei-Aghdam, F. Darabi
We present non-critical Bianchi type string cosmology solutions in the presence of central charge deficit term . The leading order string frame curvature appears to be in th…
String gravitational equations with Hermitian structure
F. Naderi, A. Rezaei-Aghdam, F. Darabi
We consider a string model at one-loop related to a -model whose antisymmetric tensor field is constructed as complex structure on the background manifold, specially on a manifo…
Gauge inflation by kinetic coupled gravity
F. Darabi, A. Parsiya
Recently, a new class of inflationary models, so called \emph{gauge-flation} or non-Abelian gauge field inflation has been introduced where the slow-roll inflation is driven by a n…
Dirac quantization of noncommutative Abelian Proca field
F. Darabi, F. Naderi
Dirac formalism of Hamiltonian constraint systems is studied for the noncommutative Abelian Proca field. It is shown that the system of constraints are of second class in agreement…
Diffeomorphism algebra of two dimensional free massless scalar field with signature change
F. Darabi, M. A. Jafarizadeh, A. Rezaei-Aghdam
We study a model of free massless scalar fields on a two dimensional cylinder with metric that admits a change of signature between Lorentzian and Euclidean type (ET), across the t…