6533b828fe1ef96bd1287b37

RESEARCH PRODUCT

Conifold Transitions and Mirror Symmetry for Calabi-Yau Complete Intersections in Grassmannians

Bumsig KimVictor V. BatyrevDuco Van StratenIonuţ Ciocan-fontanine

subject

High Energy Physics - TheoryNuclear and High Energy PhysicsInstantonPure mathematicsConifoldComplete intersectionFOS: Physical sciencesFano planeMathematics - Algebraic GeometryMathematics::Algebraic GeometryHigh Energy Physics - Theory (hep-th)FOS: MathematicsCalabi–Yau manifoldGravitational singularityMathematics::Differential GeometryMirror symmetryAlgebraic Geometry (math.AG)Mathematics::Symplectic GeometryQuantum cohomologyMathematics

description

In this paper we show that conifold transitions between Calabi-Yau 3-folds can be used for the construction of mirror manifolds and for the computation of the instanton numbers of rational curves on complete intersection Calabi-Yau 3-folds in Grassmannians. Using a natural degeneration of Grassmannians $G(k,n)$ to some Gorenstein toric Fano varieties $P(k,n)$ with conifolds singularities which was recently described by Sturmfels, we suggest an explicit mirror construction for Calabi-Yau complete intersections $X \subset G(k,n)$ of arbitrary dimension. Our mirror construction is consistent with the formula for the Lax operator conjectured by Eguchi, Hori and Xiong for gravitational quantum cohomology of Grassmannians.

10.1016/s0550-3213(98)00020-0http://arxiv.org/abs/alg-geom/9710022