11 citations · 16 across the 2 of their papers we have counts for
5 papers
D-Branes in Orientifolds and Orbifolds and Kasparov KK-Theory
H. Garcia-Compean, W. Herrera-Suarez, B. A. Itza-Ortiz +1
A classification of D-branes in Type IIB Op^- orientifolds and orbifolds in terms of Real and equivariant KK-groups is given. We classify D-branes intersecting orientifold planes f…
Freed-Witten anomaly in general flux compactification
Oscar Loaiza-Brito
Turning on a NS-NS three-form flux in a compact space drives some D-branes to be either Freed-Witten anomalous or unstable to decay into fluxes by the appearance of instantonic bra…
log(M_Pl/m_3/2)
Oscar Loaiza-Brito, Johannes Martin, Hans Peter Nilles +1
Flux compactifications of string theory seem to require the presence of a fine-tuned constant in the superpotential. We discuss a scheme where this constant is replaced by a dynami…
The Exchange of Orientifold Two-Planes in M-theory
Oscar Loaiza-Brito
We propose an M-theory lift picture of the exchange among type IIA orientifold two-planes. This consists in wrapping a M5-brane on a three-cycle in the transverse space of the M-th…
Lectures on Strings, D-branes and Gauge Theories
Hugo Garcia-Compean, Oscar Loaiza-Brito
In these lectures we review the basic ideas of perturbative and non-perturbative string theory. On the non-perturbative side we give an introduction to D-branes and string duality.…