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1,881
Hierarchies from Fluxes in String Compactifications
, 2002
"... Warped compactifications with significant warping provide one of the few known mechanisms for naturally generating large hierarchies of physical scales. We demonstrate that this mechanism is realizable in string theory, and give examples involving orientifold compactifications of IIB string theory a ..."
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Cited by 715 (33 self)
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and Ftheory compactifications on CalabiYau fourfolds. In each case, the hierarchy of scales is fixed by a choice of RR and NS fluxes in the compact manifold. Our solutions involve compactifications of the KlebanovStrassler gravity dual to a confining N = 1 supersymmetric gauge theory
RR flux on CalabiYau and partial supersymmetry breaking
 Phys. Lett. B
, 2000
"... We show how turning on Flux for RR (and NSNS) field strengths on noncompact CalabiYau 3folds can serve as a way to partially break supersymmetry from N = 2 to N = 1 by mass deformation. The freezing of the moduli of CalabiYau in the presence of the flux is the familiar phenomenon of freezing of ..."
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Cited by 194 (9 self)
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We show how turning on Flux for RR (and NSNS) field strengths on noncompact CalabiYau 3folds can serve as a way to partially break supersymmetry from N = 2 to N = 1 by mass deformation. The freezing of the moduli of CalabiYau in the presence of the flux is the familiar phenomenon of freezing
Brane/Flux Annihilation and the String Dual of a NonSupersymmetric Field Theory
, 2006
"... We consider the dynamics of p antiD3 branes inside the KlebanovStrassler geometry, the deformed conifold with M units of RR 3form flux around the S 3. We find that for p << M the system relaxes to a nonsupersymmetric NS 5brane “giant graviton ” configuration, which is classically stable, b ..."
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Cited by 170 (18 self)
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We consider the dynamics of p antiD3 branes inside the KlebanovStrassler geometry, the deformed conifold with M units of RR 3form flux around the S 3. We find that for p << M the system relaxes to a nonsupersymmetric NS 5brane “giant graviton ” configuration, which is classically stable
NonCritical Pure Spinor Superstrings
, 2006
"... We construct noncritical pure spinor superstrings in two, four and six dimensions. We find explicitly the map between the RNS variables and the pure spinor ones in the linear dilaton background. The RNS variables map onto a patch of the pure spinor space and the holomorphic top form on the pure spi ..."
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Cited by 15 (3 self)
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compute the pure spinor lowest lying BRST cohomology and find an agreement with the RNS spectra. The analysis is generalized to curved backgrounds and we construct as an example the noncritical pure spinor type IIA superstring on AdS4 with RR 4form flux.
Nongeometric Flux Compactifications
, 2006
"... We investigate a simple class of type II string compactifications which incorporate nongeometric “fluxes” in addition to “geometric flux” and the usual Hfield and RR fluxes. These compactifications are nongeometric analogues of the twisted torus. We develop Tduality rules for NSNS geometric and ..."
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Cited by 129 (5 self)
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We investigate a simple class of type II string compactifications which incorporate nongeometric “fluxes” in addition to “geometric flux” and the usual Hfield and RR fluxes. These compactifications are nongeometric analogues of the twisted torus. We develop Tduality rules for NSNS geometric
Moduli Stabilization from Fluxes in a Simple IIB Orientifold
, 2002
"... We study novel type IIB compactifications on the T 6 /Z2 orientifold. This geometry arises in the Tdual description of Type I theory on T 6, and one normally introduces 16 spacefilling D3branes to cancel the RR tadpoles. Here, we cancel the RR tadpoles either partially or fully by turning on thre ..."
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Cited by 149 (10 self)
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on threeform flux in the compact geometry. The resulting (super)potential for moduli is calculable. We demonstrate that one can find many examples of N = 1 supersymmetric vacua with greatly reduced numbers of moduli in this system. A few examples with N> 1 supersymmetry or complete supersymmetry
Open string wavefunctions in flux compactifications
, 2009
"... We consider compactifications of type I supergravity on manifolds with SU(3) structure, in the presence of RR fluxes and magnetized D9branes, and analyze the generalized Dirac and LaplaceBeltrami operators associated to the D9brane worldvolume fields. These compactifications are Tdual to standar ..."
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Cited by 18 (5 self)
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dual to standard type IIB toroidal orientifolds with NSNS and RR 3form fluxes and D3/D7 branes. By using techniques of representation theory and harmonic analysis, the spectrum of open string wavefunctions can be computed for Lie groups and their quotients, as we illustrate with explicit twisted tori examples. We
Modular invariance of strings on ppwaves with RRflux
 JHEP 0212
, 2002
"... We study the modular invariance of strings on ppwaves with RRflux. We explicitly show that the oneloop partition functions of the maximally supersymmetric ppwaves and their orbifolds can be modular invariant in spite of the mass terms in the lightcone gauge. From this viewpoint, we also determi ..."
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Cited by 30 (1 self)
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We study the modular invariance of strings on ppwaves with RRflux. We explicitly show that the oneloop partition functions of the maximally supersymmetric ppwaves and their orbifolds can be modular invariant in spite of the mass terms in the lightcone gauge. From this viewpoint, we also
Moduli Stabilization from Fluxes
 in a Simple IIB Orientifold, JHEP 0310 (2003) 007 (hepth/0201028
"... Compactifications of IIB string theory with internal NS and RR threeform flux are computationally attractive in that the lifting of moduli is via a perturbative and often explicitly calculable (super)potential. We focus on the T 6 /Z2 orientifold, and provide an illustative N = 2 example. For other ..."
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Cited by 11 (5 self)
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supersymmetric minimum of the resulting potential. In contrast, when one turns on NS and RR threeform flux through nontrivial threecycles in a fourdimensional compactification of IIB string theory, many of the moduli are lifted by a perturbative scalar potential [4] V ∝ d 6 y √ g6 G ISD  2,
IFUPTH/2003/16 hepth/0304098 A Torsion Correction to the RR 4Form Fieldstrength
, 2003
"... The shifted quantization condition of the Mtheory 4form G4 is wellknown. The most naive generalization to type IIA string theory fails, an orientifold fourplane counterexample was found by Hori in hepth/9805141. In this note we use D2brane anomaly cancellation to find the corresponding shifted ..."
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quantitization condition in IIA. Our analysis is consistent with the known O4plane tensions if we include a torsion correction to the usual construction of G4 from C3, B and G2. The resulting Bianchi identities enforce that RR fluxes lift to Ktheory classes.
Results 1  10
of
1,881