Unification of Type II Strings and T-duality

Details Unification of Type II Strings and T-duality Unification of Type II Strings and T-duality

2011-06-27

arxiv.org/abs/1106.5452v2

Physics

High Energy Physics

High Energy Physics - Theory

4 pages, v2: minor changes, to appear in PRL

Scientific paper

We present a unified description of the low-energy limits of type II string theories. This is achieved by a formulation that doubles the space-time coordinates in order to realize the T-duality group O(10,10) geometrically. The Ramond-Ramond fields are described by a spinor of O(10,10), which couples to the gravitational fields via the Spin(10,10) representative of the so-called generalized metric. This theory, which is supplemented by a T-duality covariant self-duality constraint, unifies the type II theories in that each of them is obtained for a particular subspace of the doubled space.

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