ar X iv : 1 00 4 . 25 21 v 1 [ he p - th ] 1 4 A pr 2 01 0 Exotic branes and non - geometric backgrounds
نویسنده
چکیده
When string/M-theory is compactified to lower dimensions, the U -duality symmetry predicts socalled exotic branes whose higher dimensional origin cannot be explained by the standard string/Mtheory branes. We argue that exotic branes can be understood in higher dimensions as non-geometric backgrounds or U -folds, and that they are important for the physics of systems which originally contain no exotic charges, since the supertube effect generically produces such exotic charges. We discuss the implications of exotic backgrounds for black hole microstate (non-)geometries.
منابع مشابه
ar X iv : 1 00 4 . 25 21 v 2 [ he p - th ] 2 8 Ju n 20 10 Exotic branes and non - geometric backgrounds
When string/M-theory is compactified to lower dimensions, the U -duality symmetry predicts socalled exotic branes whose higher dimensional origin cannot be explained by the standard string/Mtheory branes. We argue that exotic branes can be understood in higher dimensions as non-geometric backgrounds or U -folds, and that they are important for the physics of systems which originally contain no ...
متن کاملar X iv : 1 60 7 . 05 45 0 v 1 [ he p - th ] 1 9 Ju l 2 01 6 Non - geometric branes are DFT monopoles
The double field theory monopole solution by Berman and Rudolph is shown to reproduce non-geometric backgrounds with non-vanishing Qand R-flux upon an appropriate choice of physical and dual coordinates. The obtained backgrounds depend non-trivially on dual coordinates and have only trivial monodromies. Upon smearing the solutions along the dual coordinates one reproduces the known 52 solution ...
متن کاملar X iv : 0 80 4 . 36 29 v 1 [ he p - th ] 2 3 A pr 2 00 8 UT - 08 - 10 M 5 from M 2
Recently an action based on Lie 3-algebras was proposed to describe M2-branes. We study the case of infinite dimensional Lie 3-algebras based on the Nambu-Poisson structure of three dimensional manifolds. We show that the model contains self-dual 2-form gauge fields in 6 dimensions, and the result may be interpreted as the M5-brane world-volume action. 1 e-mail address: [email protected] 2 e...
متن کاملar X iv : 0 71 1 . 07 60 v 3 [ he p - th ] 2 6 N ov 2 00 7 DBI N - flation
We investigate DBI inflation using N multiple branes and show how the configuration is equivalent to a single wrapped D5-brane with flux. We then show how 1/N corrections can be implemented, and we examine the sound speed and levels of non-Gaussianities in two distinct cases. For models with constant warping we find that the non-Gaussian amplitude is bounded from above (as a function of γ). For...
متن کاملar X iv : h ep - t h / 02 04 19 9 v 1 2 4 A pr 2 00 2 HOLONOMY ON D - BRANES
This paper shows how to construct anomaly free world sheet actions in string theory with D-branes. Our method is to use Deligne cohomology and bundle gerbe theory to define geometric objects which are naturally associated to D-branes and connections on them. The holonomy of these connections can be used to cancel global anomalies in the world sheet action.
متن کامل