81 citations · 224 across the 10 of their papers we have counts for
10 papers
Supersymmetric higher-derivative models in quantum cosmology
Nephtalí Eliceo Martínez-Pérez, Cupatitzio Ramírez
We study the quantum cosmology of supersymmetric, homogeneous and isotropic, higher derivative models. We recall superfield actions obtained in previous works and give classically…
Effects of quantum corrections to Lorentzian vacuum transitions in the presence of gravity
H. García-Compeán, J. Hernández-Aguilar, D. Mata-Pacheco +1
We present a study of the vacuum transition probabilities taking into account quantum corrections. We first introduce a general method that expands previous works employing the Lor…
New Reflections on Gravitational Duality
Hugo Garcia-Compean, Octavio Obregon, Cupatitzio Ramirez
In general terms duality consists of two descriptions of one physical system by using degrees of freedom of different nature. There are different kinds of dualities and they have b…
Crossing the phantom divide in an interacting generalized Chaplygin gas
H. Garcia-Compean, G. Garcia-Jimenez, O. Obregon +1
Unified generalized Chaplygin gas models assuming an interaction between dark energy and dark matter fluids have been previously proposed. Following these ideas, we consider a part…
Towards SDp-brane Quantization
H. Garcia-Compean, G. Garcia-Jimenez, O. Obregon +1
The quantum mechanical analysis of the canonical hamiltonian description of the effective action of a SDp-brane in bosonic ten dimensional Type II supergravity in a homogeneous bac…
Noncommutative Topological Half-flat Gravity
H. Garcia-Compean, O. Obregon, C. Ramirez
We formulate a noncommutative description of topological half-flat gravity in four dimensions. BRST symmetry of this topological gravity is deformed through a twisting of the usual…