Branes and wrapping rules
نویسندگان
چکیده
منابع مشابه
Branes wrapping Black Holes
We examine the dynamics of extended branes, carrying lower dimensional brane charges, wrapping black holes and black hole microstates in M and Type II string theory. We show that they have a universal dispersion relation typical of threshold bound states with a total energy equal to the sum of the contributions from the charges. In near-horizon geometries of black holes, these are BPS states, a...
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Branes may be approximated semi-classically by solutions of supergravity theories with event and Cauchy horizons. I suggest that if one wishes to avoid singularities and to capture accurately some of the properties of branes then these classical spacetimes must be identified so as to render them periodic in time.
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We construct supergravity duals of D6-branes wrapping Kähler four-cycles inside a Calabi-Yau threefold, CY3. We obtain the purely gravitational M-theory description, which turns out to be a Calabi-Yau fourfold, CY4. We also analyze the dynamics of a probe D6 in this background. 1 E-mail: [email protected] 2 E-mail: [email protected]
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A general rule determining how extremal branes can intersect in a configuration with zero binding energy is presented. It is derived in a model independent way and without explicit use of supersymmetry, solving a set of classical equations of motion. When specializing to M and type II theories, it is shown that some intersection rules can be consistently interpreted as boundary rules for open b...
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We look at an M5-brane wrapping a Special Lagrangian 3-cycle in a Calabi-Yau 3-fold and study the geometry that arises when the backreaction of this brane is taken into account. Not surprisingly, the background does not remain complex. However an almost complex structure survives, (in terms of which we can define the analogue of the Kahler form), as does a globally defined (3,0) form. The requi...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2012
ISSN: 1742-6588,1742-6596
DOI: 10.1088/1742-6596/343/1/012015