Results 1  10
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249
Macroscopic strings as heavy quarks in large N gauge theory and Antide Sitter supergravity
 PHYS. J. C22
"... Maldacena has put forward large N correspondence between superconformal field theories on the brane and antide Sitter supergravity in spacetime. We study some aspects of the correspondence between N = 4 superconformal gauge theory on D3brane and maximal supergravity on adS5 × S5 by introducing mac ..."
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Cited by 508 (1 self)
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Maldacena has put forward large N correspondence between superconformal field theories on the brane and antide Sitter supergravity in spacetime. We study some aspects of the correspondence between N = 4 superconformal gauge theory on D3brane and maximal supergravity on adS5 × S5 by introducing macroscopic strings as heavy (anti)quark probes. The macroscopic strings are semiinfinite Type IIB strings ending on D3brane worldvolume. We first study deformation and fluctuation of D3brane when a macroscopic BPS string is attached. We find that both dynamics and boundary conditions agree with those for macroscopic string in antide Sitter supergravity. As a byproduct we clarify how Polchinski’s Dirichlet and Neumann open string boundary conditions arise. We then study nonBPS macroscopic string antistring pair configuration as physical realization of heavy quark Wilson loop. We obtain Q ¯ Q static potential and again find agreements between the gauge theory and the supergravity results. By turning on RamondRamond zeroform potential, we also study θ vacuum angle dependence of the static potential. We finally discuss dynamical realization of loop equation via turning on local electric field and recoil of heavy quark thereof, and of heavy baryon via of Nprong string junction. Throughout comparisons of the correspondence, we emphasize crucial role played by ‘geometric duality ’ between coordinates perpendicular to D3brane and parallel ones, hinting a possible explanation of emergence of the entire adS5 spacetime.
DBranes and KTheory
 JHEP
, 1998
"... By exploiting recent arguments about stable nonsupersymmetric Dbrane states, we argue that Dbrane charge takes values in the Ktheory of spacetime, as has been suspected before. In the process, we gain a new understanding of some novel objects proposed recently – such as the Type I zerobrane – and ..."
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Cited by 257 (8 self)
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By exploiting recent arguments about stable nonsupersymmetric Dbrane states, we argue that Dbrane charge takes values in the Ktheory of spacetime, as has been suspected before. In the process, we gain a new understanding of some novel objects proposed recently – such as the Type I zerobrane – and we describe some new objects – such as a −1brane in Type I superstring theory. October
Mtheory Dynamics on a Manifold of G2 Holonomy
"... We analyze the dynamics of Mtheory on a manifold of G2 holonomy that is developing a conical singularity. The known cases involve a cone on CP 3, where we argue that the dynamics involves restoration of a global symmetry, SU(3)/U(1) 2, where we argue that there are phase transitions among three pos ..."
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Cited by 175 (2 self)
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We analyze the dynamics of Mtheory on a manifold of G2 holonomy that is developing a conical singularity. The known cases involve a cone on CP 3, where we argue that the dynamics involves restoration of a global symmetry, SU(3)/U(1) 2, where we argue that there are phase transitions among three possible branches corresponding to three classical spacetimes, and S3 × S3 and its quotients, where we recover and extend previous results about smooth continuations between different spacetimes and relations to fourdimensional gauge theory. June
Wilson loops of antisymmetric representation and D5branes,” arXiv:hepth/0603208
 J. Gomis and F. Passerini, “Holographic Wilson
"... We use a D5brane with electric flux in AdS5 × S5 background to calculate the circular Wilson loop of antisymmetric representation in N = 4 super YangMills theory in 4 dimensions. The result agrees with the Gaussian matrix model calculation. 1 Introduction and summary The expectation values of Wil ..."
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Cited by 114 (6 self)
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We use a D5brane with electric flux in AdS5 × S5 background to calculate the circular Wilson loop of antisymmetric representation in N = 4 super YangMills theory in 4 dimensions. The result agrees with the Gaussian matrix model calculation. 1 Introduction and summary The expectation values of Wilson loops are some of the most important kind of observables in a gauge theory. In particular, Wilson loops are interesting operators in AdS/CFT correspondence since they are calculable in AdS side using strings [1, 2]. In this paper, we are interested in the Wilson loop operators of the following kind in
The M2M5 brane system and a generalized Nahm’s equation
 Nucl. Phys. B
, 2005
"... We propose an equation that describes M2branes ending on M5branes, and which generalizes the description of the D1D3 system via Nahm’s equation. The simplest solution to this equation constructs the transverse geometry in terms of a fuzzy three sphere. We show that the solution passes a number of ..."
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Cited by 80 (0 self)
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We propose an equation that describes M2branes ending on M5branes, and which generalizes the description of the D1D3 system via Nahm’s equation. The simplest solution to this equation constructs the transverse geometry in terms of a fuzzy three sphere. We show that the solution passes a number of consistency checks including a consistent reduction to the D1D3 system, a calculation of the energy of the system, matching to the selfdual string solution in the M5brane world volume, and a study of simple fluctuations about the ground state configuration. We write down certain terms in the effective action of multiple membranes, which includes a sextic scalar coupling.
Baryons and string creation from the fivebrane worldvolume action,” Nucl
 Phys. B
, 1999
"... We construct BPSexact solutions of the worldvolume BornInfeld plus WZW action of a D5brane in the background of N D3branes. The nontrivial background metric and RR fiveform field strength play a crucial role in the solution. When a D5brane is dragged across a stack of N D3branes a bundle of ..."
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Cited by 72 (7 self)
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We construct BPSexact solutions of the worldvolume BornInfeld plus WZW action of a D5brane in the background of N D3branes. The nontrivial background metric and RR fiveform field strength play a crucial role in the solution. When a D5brane is dragged across a stack of N D3branes a bundle of N fundamental strings joining the two types of branes is created, as in the HananyWitten effect. Our solutions give a detailed description of this bundle in terms of a D5brane wrapped on a sphere. We discuss extensions of these solutions which have an interpretation in terms of gauge theory multiquark states via the AdS/CFT correspondence.
Supersymmetric sources, integrability and generalizedstructure compactifications
 J. High Energy Phys
"... Abstract: In the context of supersymmetric compactifications of type II supergravity to four dimensions, we show that orientifold sources can be compatible with a generalized SU(3) × SU(3)structure that is neither strictly SU(3) nor static SU(2). We illustrate this with explicit examples, obtained ..."
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Cited by 68 (12 self)
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Abstract: In the context of supersymmetric compactifications of type II supergravity to four dimensions, we show that orientifold sources can be compatible with a generalized SU(3) × SU(3)structure that is neither strictly SU(3) nor static SU(2). We illustrate this with explicit examples, obtained by suitably Tdualizing known solutions on the sixtorus. In addition we prove the following integrability statements, valid under certain mild assumptions: (a) for general type II supergravity backgrounds with orientifold and/or Dbrane generalizedcalibrated sources, the sourcecorrected Einstein and dilaton equations of motion follow automatically from the supersymmetry equations once the likewise sourcecorrected form equations of motion and Bianchi identities are imposed; (b) in the special case of supersymmetric compactifications to fourdimensional Minkowski space, the equations of motion of all fields, including the NSNS threeform, follow automatically once the supersymmetry and the Bianchi identities of the forms are imposed. Both (a) and (b) are equally valid whether the sources are smeared or localized. As a byproduct we obtain the calibration form for a spacefilling NS5brane.
Mtheory from its Superalgebra
, 1997
"... These lectures explore what can be learnt about Mtheory from its superalgebra. The first three lectures introduce the ‘basic’ branes of Mtheory, and Type II superstring theories, and show how the duality relations between them are encoded in the respective spacetime superalgebras. The fourth lectu ..."
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Cited by 67 (2 self)
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These lectures explore what can be learnt about Mtheory from its superalgebra. The first three lectures introduce the ‘basic’ branes of Mtheory, and Type II superstring theories, and show how the duality relations between them are encoded in the respective spacetime superalgebras. The fourth lecture introduces brane intersections and explains how they are encoded in the worldvolume superalgebras.
Analytic solutions for marginal deformations in open string field theory
, 2007
"... We develop a calculable analytic approach to marginal deformations in open string field theory using wedge states with operator insertions. For marginal operators with regular operator products, we construct analytic solutions to all orders in the deformation parameter. In particular, we construct a ..."
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Cited by 64 (9 self)
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We develop a calculable analytic approach to marginal deformations in open string field theory using wedge states with operator insertions. For marginal operators with regular operator products, we construct analytic solutions to all orders in the deformation parameter. In particular, we construct an exact timedependent solution that describes Dbrane decay and incorporates all α' corrections. For marginal operators with singular operator products, we construct solutions by regularizing the singularity and adding counterterms. We explicitly carry out the procedure to third order in the deformation parameter.