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Maximal supergravity from IIB flux compactifications”, Phys

by Bernard De Wit, Henning Samtleben, Mario Trigiante - Lett. B583
"... Using a recently proposed group-theoretical approach, we explore novel gaugings of maximal supergravity in four dimensions with gauge group embeddings that can be generated by fluxes of IIB string theory. The corresponding potentials are positive without stationary points. Some allow domain wall sol ..."
Abstract - Cited by 21 (8 self) - Add to MetaCart
Using a recently proposed group-theoretical approach, we explore novel gaugings of maximal supergravity in four dimensions with gauge group embeddings that can be generated by fluxes of IIB string theory. The corresponding potentials are positive without stationary points. Some allow domain wall

Stringy Instantons in IIB Brane Systems

by Shamit Kachru , 2008
"... In this note, we study D-brane instantons which intersect N = 1 supersymmetric configurations of space-filling D-branes in general Calabi-Yau compactifications of type IIB string theory. Our focus is on rigid “stringy instantons ” – those which cannot be interpreted as Yang-Mills instantons in a no ..."
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In this note, we study D-brane instantons which intersect N = 1 supersymmetric configurations of space-filling D-branes in general Calabi-Yau compactifications of type IIB string theory. Our focus is on rigid “stringy instantons ” – those which cannot be interpreted as Yang-Mills instantons in a

D-brane Deconstructions in IIB Orientifolds

by Andrés Collinucci, Frederik Denef, Mboyo Esole , 2008
"... With model building applications in mind, we collect and develop basic techniques to analyze the landscape of D7-branes in type IIB compact Calabi-Yau orientifolds, in three different pictures: F-theory, the D7 worldvolume theory and D9-anti-D9 tachyon condensation. A significant complication is th ..."
Abstract - Cited by 1 (1 self) - Add to MetaCart
With model building applications in mind, we collect and develop basic techniques to analyze the landscape of D7-branes in type IIB compact Calabi-Yau orientifolds, in three different pictures: F-theory, the D7 worldvolume theory and D9-anti-D9 tachyon condensation. A significant complication

de Sitter string vacua from supersymmetric Dterms

by C. P. Burgess, R. Kallosh, F. Quevedo - JHEP , 2003
"... Abstract: We propose a new mechanism for obtaining de Sitter vacua in type IIB string theory compactified on (orientifolded) Calabi-Yau manifolds similar to those recently studied by Kachru, Kallosh, Linde and Trivedi (KKLT). dS vacuum appears in KKLT model after uplifting an AdS vacuum by adding an ..."
Abstract - Cited by 158 (19 self) - Add to MetaCart
Abstract: We propose a new mechanism for obtaining de Sitter vacua in type IIB string theory compactified on (orientifolded) Calabi-Yau manifolds similar to those recently studied by Kachru, Kallosh, Linde and Trivedi (KKLT). dS vacuum appears in KKLT model after uplifting an AdS vacuum by adding

Generalised G2-structures and type IIB superstrings

by Claus Jeschek , Frederik Witt , 2004
"... The recent mathematical literature introduces generalised geometries which are defined by a reduction from the structure group SO(d,d) of the vector bundle T d ⊕ T d ∗ to a special subgroup. In this article we show that compactification of IIB superstring vacua on 7-manifolds with two covariantly co ..."
Abstract - Cited by 16 (2 self) - Add to MetaCart
The recent mathematical literature introduces generalised geometries which are defined by a reduction from the structure group SO(d,d) of the vector bundle T d ⊕ T d ∗ to a special subgroup. In this article we show that compactification of IIB superstring vacua on 7-manifolds with two covariantly

An exact prediction of N = 4 SUSYM theory for string theory

by Nadav Drukker, David J. Gross - J. Math. Phys , 2001
"... We show that the expectation value of a circular BPS-Wilson loop in N = 4 SUSYM can be calculated exactly, to all orders in a 1/N expansion and to all orders in g 2 N. Using the AdS/CFT duality, this result yields a prediction of the value of the string amplitude with a circular boundary to all orde ..."
Abstract - Cited by 152 (18 self) - Add to MetaCart
(SUSYM) with type IIB string theory in AdS5 × S 5 background. However, since the duality relates gauge theory with coupling g 2 and gauge group of

Geometric and Non-Geometric Compactifications Of IIB Supergravity

by R.A. Reid-Edwards , 2006
"... Complimentary geometric and non-geometric consistent reductions of IIB supergravity are studied. The geometric reductions on the identified group manifold X = G/Γ are found to have a gauge symmetry with Lie algebroid structure, generalising that found in similar reductions of the Bosonic string theo ..."
Abstract - Cited by 3 (2 self) - Add to MetaCart
Complimentary geometric and non-geometric consistent reductions of IIB supergravity are studied. The geometric reductions on the identified group manifold X = G/Γ are found to have a gauge symmetry with Lie algebroid structure, generalising that found in similar reductions of the Bosonic string

N = 4 Supergravity Lagrangian for Type IIB

by On T /z Orientifold, In Presence Of Fluxes, S. Ferrara, F. Gargiulo, M. Trigiante, S. Vaulà, Frascati Italy, Torino Italy , 2003
"... We derive the Lagrangian and the transformation laws of N = 4 gauged supergravity coupled to matter multiplets whose σ-model of the scalars is SU(1,1)/U(1)⊗ SO(6,6 + n)/SO(6) ⊗ SO(6 + n) and which corresponds to the effective Lagrangian of the Type IIB string compactified on the T 6 /Z2 orientifold ..."
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We derive the Lagrangian and the transformation laws of N = 4 gauged supergravity coupled to matter multiplets whose σ-model of the scalars is SU(1,1)/U(1)⊗ SO(6,6 + n)/SO(6) ⊗ SO(6 + n) and which corresponds to the effective Lagrangian of the Type IIB string compactified on the T 6 /Z2

Fundamental Strings and D-strings in the IIB Matrix Model

by B. Sathiapalan , 2008
"... The matrix model for IIB Superstring proposed by Ishibashi, Kawai, Kitazawa and Tsuchiya is investigated. Consideration of planar and non-planar diagrams suggests that the large N perturbative expansion is consistent with the double scaling limit proposed by the above authors. We write down a Wilson ..."
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are introduced for the fundamental string, then the conjugate variable d dσ and d dτ can be interpreted as the D-string world sheet coordinates. In this way the SL(2Z) duality group of the IIB superstring becomes identified with the symplectic group acting on (p,q). 1 1

Three Family Type IIB Orientifold String

by Vacua Non-abelian, Wilson Lines, Mirjam Cvetič A, Michael Plümacher A, Jing Wang A , 2000
"... Abstract: We address the implementation of non-Abelian Wilson lines in D=4 N=1 Type IIB orientifold constructions. We present an explicit three-family example with the gauge group (U(4)×U(2)×SU(2)×SU(2)) 2 ×(U(6)×Sp(4)) 2 and give the particle spectrum and the trilinear superpotential. Emphasizing t ..."
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Abstract: We address the implementation of non-Abelian Wilson lines in D=4 N=1 Type IIB orientifold constructions. We present an explicit three-family example with the gauge group (U(4)×U(2)×SU(2)×SU(2)) 2 ×(U(6)×Sp(4)) 2 and give the particle spectrum and the trilinear superpotential. Emphasizing
Results 11 - 20 of 558