منابع مشابه
Consequences of U dualities for Intersecting Branes in the Universe
We consider N – charge, intersecting brane antibrane configurations in M theory which are smeared uniformly in the common transverse space and may describe our universe. We study the consequences of U dualities and find that they imply relations among the scale factors. We find using Einstein’s equations that U dualities also imply a relation among the density ρ and the pressure pi for the sing...
متن کاملLarge-small Dualities between Periodic Collapsing/expanding Branes and Brane Funnels
We consider space and time dependent fuzzy spheres S 2p arising in D1 − D(2p + 1) intersections in IIB string theory and collapsing D(2p)-branes in IIA string theory. In the case of S 2 , where the periodic space and time-dependent solutions can be described by Jacobi elliptic functions, there is a duality of the form r to 1 r which relates the space and time dependent solutions. This duality i...
متن کاملD - Branes on the Conifold and N = 1 Gauge / Gravity Dualities ∗
We review extensions of the AdS/CFT correspondence to gauge/ gravity dualities with N = 1 supersymmetry. In particular, we describe the gauge/gravity dualities that emerge from placing D3-branes at the apex of the conifold. We consider first the conformal case, with discussions of chiral primary operators and wrapped D-branes. Next, we break the conformal symmetry by adding a stack of partially...
متن کاملDualities and fivebrane instantons
We derive the fivebrane instanton corrections to the hypermultiplet moduli space MH of Calabi-Yau string vacua using S-duality symmetry of the type IIB formulation. The result is given in terms of a set of holomorphic functions on the twistor space of MH . It contains not only all orders of the instanton expansion, but also takes into account the presence of D1-D(-1)-brane instantons. Furthermo...
متن کاملDualities and intertheoretic relations
The idea of duality is at the core of the most relevant developments in recent fundamental physics. During the last forty years theoretical physics has used the notion of duality in different ways and frameworks: in the so-called dual resonance model of the late sixties, which gave birth to early string theory; in the context of quantum field theory, where a groundbreaking generalization of ele...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 1998
ISSN: 0550-3213
DOI: 10.1016/s0550-3213(98)00691-9