Publications [#8906] of Robert L Bryant

Papers Published

1. with Eric Sharpe, D-branes and Spin^c-structures, Phys. Lett. B, vol. 450 no. 4 (1999), pp. 353–357 [MR2000c:53054], [hep-th/98l2084]
   (last updated on 2004/04/06)

   Abstract:
   It was recently pointed out by E. Witten that for a D-brane to consistently wrap a submanifold of some manifold, the normal bundle must admit a Spin^c structure. We examine this constraint in the case of type II string compactifications with vanishing cosmological constant and argue that, in all such cases, the normal bundle to a sypersymmetric cycle is automatically Spin^c.