Results 1  10
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2,234
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
Nontrivial RR twoform field strength and SU(3)structure
"... Abstract: We discuss how in the presence of a nontrivial RR twoform field strength and nontrivial dilaton the conditions of preserving supersymmetry on sixdimensional manifolds lead to generalized monopole and Killing spinor equations. We show that the manifold is Kähler in the tendimensional str ..."
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Cited by 22 (2 self)
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Abstract: We discuss how in the presence of a nontrivial RR twoform field strength and nontrivial dilaton the conditions of preserving supersymmetry on sixdimensional manifolds lead to generalized monopole and Killing spinor equations. We show that the manifold is Kähler in the ten
On Type IIA String Theory on the PPwave Background
, 2002
"... We study type IIA superstring theory on a PPwave background with 24 supercharges. This model can exactly be solved and then quantized. The open string in this PPwave background is also studied. We observe that the An interesting observation in [1] (see also [2]) is that type IIB string theory on t ..."
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on the 10dimensional PPwave background with five form RR field strength is exactly solvable. In fact it has been shown that in the lightcone gauge the GreenSchwarz action of type IIB string theory in this background is quadratic in both bosonic and
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
UCSBTH9722 hepth/9711106 BornInfeld Strings Tunneling to Dbranes
, 1997
"... Recent work on solutions to the BornInfeld theory used to describe Dbranes suggests that fundamental strings can be viewed, in a certain limit, as Dbranes whose worldvolumes have collapsed to stringlike configurations. Here we address the possibility of undoing this collapse, by inducing the str ..."
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the string to tunnel to an extended brane configuration. Using semiclassical methods we argue that, by putting one of these BornInfeld strings in the background of a uniform 4form RR field strength, the string can nucleate a spheroidal bulge of D2brane, or, if the string is wrapped around a small enough
Spacetime Spinors and RR fields in Curved Backgrounds”, Nucl. Phys
 568 (2000) 145 [hepth/9907152]; S.F. Hassan, “SO(d,d) Transformations of RamondRamond Fields and Spacetime Spinors”, Nucl. Phys. 583 (2000) 431 [hepth/9912236
"... We obtain the Tduality transformations of spacetime spinors (the supersymmetry transformation parameters, gravitinos and dilatinos) of typeII theories in curved backgrounds with an isometry. The transformation of the spinor index is shown to be a consequence of the twist that Tduality introduces ..."
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Cited by 86 (2 self)
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duality introduces between the left and rightmoving local Lorentz frames. The result is then used to derive the Tduality action on RamondRamond field strengths and potentials in a simple way. We also discuss the massive IIA theory and, using duality, give a short derivation of “mass”dependent terms in the Wess
Response of Neurons in the Lateral Intraparietal Area during a Combined Visual Discrimination Reaction Time Task
 Journal of Neuroscience
, 2002
"... Decisions about the visual world can take time to form, especially when information is unreliable. We studied the neural correlate of gradual decision formation by recording activity from the lateral intraparietal cortex (area LIP) of rhesus monkeys during a combined motiondiscrimination reactiont ..."
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Cited by 177 (8 self)
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Decisions about the visual world can take time to form, especially when information is unreliable. We studied the neural correlate of gradual decision formation by recording activity from the lateral intraparietal cortex (area LIP) of rhesus monkeys during a combined motiondiscrimination reaction
Nonlinear Instantons from Supersymmetric Pbranes
, 1999
"... Supersymmetric configurations of type II Dbranes with nonzero gauge field strengths in general supersymmetric backgrounds with nonzero B fields are analyzed using the κsymmetric worldvolume action. It is found in dimension four or greater that the usual instanton equation for the gauge field obtai ..."
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Cited by 151 (7 self)
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of noncommutative geometry as well as those following from Lagrangians based on BottChern forms. We further consider instantons comprised of M5branes wrapping a CalabiYau space with nonvanishing threeform field strengths. It is shown that the instanton equations for the threeform are related to the Kodaira
Compactifications of Type IIB Strings to Four Dimensions with Nontrivial Classical Potential
, 1996
"... Type IIB strings are compactified on a CalabiYau threefold. When CalabiYauvalued expectation values are given to the NSNS and RR threeform field strengths, the dilaton hypermultiplet becomes both electrically and magnetically charged. The resultant classical potential is calculated, and minima ..."
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Cited by 115 (0 self)
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Type IIB strings are compactified on a CalabiYau threefold. When CalabiYauvalued expectation values are given to the NSNS and RR threeform field strengths, the dilaton hypermultiplet becomes both electrically and magnetically charged. The resultant classical potential is calculated
Nekrasov, “Gravity duals of fractional branes and logarithmic
 RG flow,” Nucl. Phys. B
"... We study fractional branes in N = 2 orbifold and N = 1 conifold theories. Placing a large number N of regular D3branes at the singularity produces the dual AdS5 × X 5 geometry, and we describe the fractional branes as small perturbations to this background. For the orbifolds, X 5 = S 5 /Γ and fract ..."
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Cited by 138 (6 self)
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find a nonconformal N = 1 supersymmetric SU(N + M) × SU(N) gauge theory. The dual Type IIB background is AdS5 × T 1,1 with NSNS and RR 2form fields turned on. This dual description reproduces the logarithmic flow of couplings found in the field theory. 11/99
Results 1  10
of
2,234