منابع مشابه
The Geometry of M-Branes Wrapping Special Lagrangian Cycles
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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Noncommutative torus compactification of Matrix model is shown to be a direct consequence of quantization of the open strings attached to a D-membrane with a nonvanishing background B field. We calculate the BPS spectrum of such a brane system using both string theory results and DBI action. The DBI action leads to a new transformation property of the compactification radii under the SL(2, Z)N ...
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We show that toric geometry can be used rather effectively to translate a brane configuration to geometry. Roughly speaking the skeletons of toric space are identified with the brane configurations. The cases where the local geometry involves hypersurfaces in toric varieties (such as P blown up at more than 3 points) presents a challenge for the brane picture. We also find a simple physical exp...
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We obtain forms of Born-Infeld and D-brane actions that are quadratic in derivatives of X and linear in Fμν by introducing an auxiliary ‘metric’ which has both symmetric and anti-symmetric parts, generalising the simplification of the Nambu-Goto action for p-branes using a symmetric metric. The abelian gauge field appears as a Lagrange multiplier, and solving the constraint gives the dual form ...
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The structures in target space geometry that correspond to conformally invariant boundary conditions in WZW theories are determined both by studying the scattering of closed string states and by investigating the algebra of open string vertex operators. In the limit of large level, we find branes whose world volume is a regular conjugacy class or, in the case of symmetry breaking boundary condi...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2015
ISSN: 1029-8479
DOI: 10.1007/jhep05(2015)079