### New Fractional Branes

Very interesting paper today by Ashok, Dell’Aquila and Diaconescu. They construct a new class of boundary states (D-branes) on Landau-Ginzburg Orbifolds. Previous constructions clearly missed a large class of D-branes. In particular, there was no candidate for (what, at large radius corresponds to) the D0-brane on the Quintic. This led to a certain amount of speculation by Douglas and collaborators on the “fate” of the D0-brane.

Among the new class of boundary states found by these folks, is one that they say corresponds to the D0-brane.

I’m afraid I can’t say much about the technical details yet. Maybe in a few day, when I’ve gotten further into it.

Posted by distler at January 21, 2004 12:28 AM