Orientiholes: black hole technology applied to flux vacua
Jeudi 26/03/2009, 11:00
Salle Claude Itzykson, Bât. 774, Orme des Merisiers
By T-dualizing space-filling D-branes, we obtain black hole bound states living
in a universe with a gauged spatial reflection symmetry. We call these objects
"orientiholes". The gravitational entropy of orientihole configurations
provides an estimate of the number of vacua in various sectors of the IIB
landscape. Basic physical properties of orientiholes provide a useful
alternative picture on a number of issues arising in D-brane model building.
More generally, we give orientihole generalizations of recently derived wall
crossing formulae, and conjecture a relation to the topological string
analogous to the OSV conjecture, but with a linear rather than a quadratic
identification of partition functions.