58 citations · 91 across the 5 of their papers we have counts for
5 papers
Tachyon potentials from a supersymmetric FRW model
G. García-Jiménez, C. Ramírez, V. Vázquez-Báez
Considering that the effective theory of closed string tachyons can have worldsheet supersymmetry, as shown by Vafa, we study a worldline supersymmetric action in a FRW background,…
Closed String Tachyon: Inflation and Cosmological Collapse
Celia Escamilla-Rivera, Gerardo Garcia-Jimenez, Oscar Loaiza-Brito +1
By compactifying a critical bosonic string theory on an internal non-flat space with a constant volume, we study the role played by the closed string tachyon in the cosmology of th…
Unveiling the tachyon dynamics in the Carrollian limit
Celia Escamilla-Rivera, G. Garcia-Jimenez, O. Obregon
We briefly study the dynamics at classical level of the Carrollian limit, with vanishing speed of light and no possible propagation of signals, for a simply effective action in a f…
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…