Results 1  10
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72
Large N field theories, string theory and gravity
, 2001
"... We review the holographic correspondence between field theories and string/M theory, focusing on the relation between compactifications of string/M theory on Antide Sitter spaces and conformal field theories. We review the background for this correspondence and discuss its motivations and the evide ..."
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Cited by 1443 (45 self)
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We review the holographic correspondence between field theories and string/M theory, focusing on the relation between compactifications of string/M theory on Antide Sitter spaces and conformal field theories. We review the background for this correspondence and discuss its motivations and the evidence for its correctness. We describe the main results that have been derived from the correspondence in the regime that the field theory is approximated by classical or semiclassical gravity. We focus on the case of the N = 4 supersymmetric gauge theory in four dimensions, but we discuss also field theories in other dimensions, conformal and nonconformal, with or without supersymmetry, and in particular the relation to QCD. We also discuss some implications for black hole physics.
ChernSimons terms and the Three Notions of Charge,” hepth/0006117
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Multiply wound Polyakov loops at strong coupling,” arXiv:hepth/0603190
"... We study the expectation value of a PolyakovMaldacena loop that wraps the thermal circle k times in strongly coupled N = 4 super YangMills theory. This is achieved by considering probe D3 and D5 brane embeddings in the dual black hole geometry. In contrast to multiply wound spatial Wilson loops, n ..."
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Cited by 58 (6 self)
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We study the expectation value of a PolyakovMaldacena loop that wraps the thermal circle k times in strongly coupled N = 4 super YangMills theory. This is achieved by considering probe D3 and D5 brane embeddings in the dual black hole geometry. In contrast to multiply wound spatial Wilson loops, nontrivial dependence on k is captured through D5 branes. We find N −2/3 corrections, 1.1 Phase structure of N = 4 SYM theory The phase structure of N = 4 super YangMills (SYM) theory at large N on S 3 × S 1 is of interest from both gravitational and field theoretic perspectives. The AdS/CFT correspondence [1] places both the weak and strong coupling regimes of the theory
Dbranes in an AdS3 background
 J. High Energy Phys
, 1999
"... Abstract. We study the possible Dbrane configurations in an AdS3×S 3 ×T 4 background with a NSNS B field. We use its WZW model description and the boundary state formalism to determine the N=1 supersymmetric boundary states. We compare with the corresponding classical open string sigma model. Some ..."
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Cited by 13 (2 self)
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Abstract. We study the possible Dbrane configurations in an AdS3×S 3 ×T 4 background with a NSNS B field. We use its WZW model description and the boundary state formalism to determine the N=1 supersymmetric boundary states. We compare with the corresponding classical open string sigma model. Some of these Dbrane configurations turn out to preserve half of the spacetime supersymmetry of the underlying background. 1.
Aspects of Dbrane Dynamics in Supergravity Backgrounds with Fluxes, Kappa–symmetry and Equations of Motion. Part IIB
, 2006
"... We derive and carry out a detailed analysis of the equations of motion of the type IIB D branes in generic supergravity backgrounds with fluxes making account of the worldvolume Born–Infeld gauge field and putting a special emphasis on the structure of the Dirac equation for Dp brane fermionic modes ..."
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Cited by 12 (3 self)
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We derive and carry out a detailed analysis of the equations of motion of the type IIB D branes in generic supergravity backgrounds with fluxes making account of the worldvolume Born–Infeld gauge field and putting a special emphasis on the structure of the Dirac equation for Dp brane fermionic modes. We present an explicit form of the worldvolume field equations for each of the Dp branes (p = 1, 3, 5, 7, 9) in the cases in which the Neveu–Schwarz flux and the Ramond–Ramond p–form flux along the Dp–brane worldvolume are zero and the supergravity backgrounds do not necessarily induce the worldvolume Born–Infeld flux. We then give several examples of D3, D5 and D7 brane configurations in which the worldvolume Born–Infeld flux is intrinsically non–zero and therefore must be taken into account in studying problems where such branes are involved. The examples include D3 and D5 brane instantons carrying (self–dual) worldvolume gauge fields in warped compactification backgrounds.
On string junctions in supersymmetric gauge theories,” Prog
 Theor. Phys
, 2004
"... We study junctions consisting of confining strings in N = 1 supersymmetric large N gauge theories by means of the gauge/gravity correspondence. We realize these junctions as Dbrane configurations in infrared geometries of the KlebanovStrassler (KS) and the MaldacenaNúñez (MN) solutions. After dis ..."
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Cited by 11 (0 self)
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We study junctions consisting of confining strings in N = 1 supersymmetric large N gauge theories by means of the gauge/gravity correspondence. We realize these junctions as Dbrane configurations in infrared geometries of the KlebanovStrassler (KS) and the MaldacenaNúñez (MN) solutions. After discussing kinematics associated with the balance of tensions, we compute the energies of baryon vertices numerically. In the KS background, baryon vertices give negative contributions to the energies. The results for the MN background strongly suggest that the energies of baryon vertices exactly vanish, as in the case of supersymmetric (p, q)string junctions. We find that brane configurations in the MN background have a property similar to the holomorphy of the Mtheory realization of (p, q)string junctions. With the help of this property, we analytically prove the vanishing of the energies of baryon vertices in the MN background.
RR charges of D2branes in group manifold and HananyWitten effect,” JHEP0012
, 2000
"... By exploiting the correspondence between the Cardy boundary state in SU(2) group manifold and the BPS D3brane configuration in the full asymptotically flat geometry of NS5branes, we show that the HananyWitten effect in 10D background is encoded in the Cardy boundary states. The two RR Page D0 cha ..."
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Cited by 8 (4 self)
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By exploiting the correspondence between the Cardy boundary state in SU(2) group manifold and the BPS D3brane configuration in the full asymptotically flat geometry of NS5branes, we show that the HananyWitten effect in 10D background is encoded in the Cardy boundary states. The two RR Page D0 charges of the nth spherical D2brane due to the contraction to e or (−e) is interpreted, and attributed to the HananyWitten effect.
Baryons with D5 Brane Vertex and kQuarks States
, 2008
"... We study baryons in SU(N) gauge theories, according to the gauge/string correspondence based on IIB string theory. The D5 brane, in which N fundamental strings are dissolved as a color singlet, is introduced as the baryon vertex, and its configurations are studied. We find point and splittype of v ..."
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Cited by 6 (5 self)
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We study baryons in SU(N) gauge theories, according to the gauge/string correspondence based on IIB string theory. The D5 brane, in which N fundamental strings are dissolved as a color singlet, is introduced as the baryon vertex, and its configurations are studied. We find point and splittype of vertex. In the latter case, two cusps appears and they are connected by a flux composed of dissolved fundamental strings with a definite tension. In both cases, N fundamental quarks are attached on the cusp(s) of the vertex to cancel the surface term. In the confining phase, we find that the quarks in the baryon feel the potential increasing linearly with the distance from the vertex. At finite temperature and in the deconfining phase, we find stable kquarks ”baryons”, which are constructed of arbitrary number of k(< N) quarks.