On Isolated Conformal Fixed Points and Noncritical String Theory

Alishahiha, Mohsen; Ghodsi, Ahmad; Mosaffa, Amir E.

doi:10.1088/1126-6708/2005/01/017

Cited by 13 publications

(14 citation statements)

References 25 publications

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“…This solution has the right structure to be dual to N = 1 supersymmetric SU(N) gauge theories with N f flavors, in agreement with the proposal in [21]. Several other AdS p × S q solutions were also found [23] in the context of the six dimensional noncritical superstring theory.…”

Section: Introductionsupporting

confidence: 85%

Flat currents of the Green-Schwarz superstrings inAdS5×S1andAdS3×S<

Chen¹,

Zhang

et al. 2005

Phys. Rev. D

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We construct a one-parameter family of flat currents in AdS 5 ×S 1 and AdS 3 ×S 3 Green-Schwarz superstrings, which would naturally lead to a hierarchy of classical conserved nonlocal charges. In the former case we rewrite the AdS 5 × S 1 string using a new Z 4graded base of the superalgebra su(2, 2|2). In both cases the existence of the Z 4 grading in the superalgebras plays a key role in the construction. As a result, we find that the flat currents, when formally written in terms of the G 0 -gauge invariant lowercase 1-forms, take the same form as the one in AdS 5 × S 5 case. *

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Section: Introductionsupporting

confidence: 85%

Flat currents of the Green-Schwarz superstrings inAdS5×S1andAdS3×S<

Chen¹,

Zhang

et al. 2005

Phys. Rev. D

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“…In what follows, we argue that such conditions are automatically satisfied for the D5-branes we formulate and there is no need to introduce anti-D5-branes. 4 For relevant discussions and follow-up work in this direction see [12,13].…”

Section: D4mentioning

confidence: 99%

D-branes and SQCD in non-critical superstring theory

Fotopoulos¹,

Niarchos²,

Prezas³

2005

J. High Energy Phys.

102

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Using exact boundary conformal field theory methods we analyze the D-brane physics of a specific four-dimensional non-critical superstring theory which involves the N = 2 SL(2)/U (1) Kazama-Suzuki model at level 1. Via the holographic duality of [1] our results are relevant for D-brane dynamics in the background of NS5-branes and D-brane dynamics near a conifold singularity. We pay special attention to a configuration of D3-and D5branes that realizes N = 1 supersymmetric QCD and discuss the massless spectrum and classical moduli of this setup in detail. We also comment briefly on the implications of this construction for the recently proposed generalization of the AdS/CFT correspondence by Klebanov and Maldacena within the setting of non-critical superstrings.

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“…Some examples of non-critical AdS/CFT pairs for theories with flavors have recently been studied [10,11] 1 . In particular [10] considers N = 1 QCD in Seiberg's conformal window.…”

Section: Introductionmentioning

confidence: 99%

Non-critical holography and four-dimensional CFT's with fundamentals

Bigazzi¹,

Casero²,

Cotrone³

et al. 2005

J. High Energy Phys.

196

334

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We find non-critical string backgrounds in five and eight dimensions, holographically related to four-dimensional conformal field theories with N = 0 and N = 1 supersymmetries. In the five-dimensional case we find an AdS 5 background metric for a string model related to non-supersymmetric, conformal QCD with large number of colors and flavors and discuss the conjectured existence of a conformal window from the point of view of our solution. In the eight-dimensional string theory, we build a family of solutions of the form AdS 5 ×S 3 withS 3 a squashed three-sphere. For a special value of the ratio N f /N c , the background can be interpreted as the supersymmetric near-horizon limit of a system of color and flavor branes on R 1,3 times a known four-dimensional generalization of the cigar. The N = 1 dual theory with fundamental matter should have an IR fixed point only for a fixed ratio N f /N c . General features of the string/gauge theory correspondence for theories with fundamental flavors are also addressed.

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On Isolated Conformal Fixed Points and Noncritical String Theory

Cited by 13 publications

References 25 publications

Flat currents of the Green-Schwarz superstrings inAdS5×S1andAdS3×S<

Flat currents of the Green-Schwarz superstrings inAdS5×S1andAdS3×S<

D-branes and SQCD in non-critical superstring theory

Non-critical holography and four-dimensional CFT's with fundamentals

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