64 citations · 335 across the 32 of their papers we have counts for
3 papers · 1 filter
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…
Topological effects on string vacua
Oscar Loaiza-Brito
We review some topological effects on the construction of string flux-vacua. Specifically we study the effects of brane-flux transitions on the stability of D-branes on a generaliz…
Spherically symmetric solution in a space-time with torsion
Filemon Farfan, Ricardo Garcia-Salcedo, Oscar Loaiza-Brito +2
By using the method of group analysis, we obtain a new exact evolving and spherically symmetric solution of the Einstein-Cartan equations of motion, corresponding to a space-time t…