Conifolds From D-branes

Physics – High Energy Physics – High Energy Physics - Theory

Scientific paper

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7 pages, AMSTEX, Cosmetic changes. Equation numbers and typos corrected and references added. To appear in Phys. Lett. B

Scientific paper

10.1016/S0370-2693(98)00141-5

In this note we study the resolution of conifold singularity by D-branes by considering compactification of D-branes on $\C^3/(\Z_2\times\Z_2)$. The resulting vacuum moduli space of D-branes is a toric variety which turns out to be a resolved conifold, that is a nodal variety in $\C^4$. This has the implication that all the corresponding phases of Type--II string theory are geometrical and are accessible to the D-branes, since they are related by flops.

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