T-Duality: Topology change from H-Flux
T-duality acts on circle bundles by exchanging the first Chern class with the fiberwise integral of the H-flux, as we motivate using E8 and also using S-duality. We present known and new examples including NS5-branes, nilmanifolds, lens spaces, both circle bundles over ℝPn, and the Ad S5 × S5 to Ad S5 × ℂP2 × S1 with background H-flux of Duff, Lü and Pope. When T-duality leads to M-theory on a non-spin manifold the gravitino partition function continues to exist due to the background flux,...[Show more]
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|Source:||Communications in Mathematical Physics|
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