Math @ Duke

Publications [#243408] of Robert Bryant
search www.ams.org.Papers Published
 with Sharpe, E; Bryant, RL, Dbranes and Spin^cstructures,
Physics Letters, Section B: Nuclear, Elementary Particle and HighEnergy Physics, vol. 450 no. 4
(1999),
pp. 353357 [MR2000c:53054], [hepth/98l2084]
(last updated on 2018/02/21)
Abstract: It was recently pointed out by E. Witten that for a Dbrane
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.


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