D-branes and SQCD in non-critical superstring theory

Fotopoulos, Angelos; Niarchos, Vasilis; Prezas, Nikolaos

doi:10.1088/1126-6708/2005/10/081

Cited by 38 publications

(103 citation statements)

References 62 publications

(171 reference statements)

Supporting

Mentioning

102

Contrasting

Order By: Relevance

“…The latter are the analogue of the uncharged five-branes introduced in [10]. In that case, they have been argued in [16] to be ordinary branes double-sheeted on the cigar. Here, on the other hand, the four-branes should be most probably viewed as brane-antibrane pairs in order to be uncharged.…”

Section: The Five-dimensional Solutions and Conformal Qcdmentioning

confidence: 97%

See 1 more Smart Citation

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

Bigazzi¹,

Casero²,

Cotrone³

et al. 2005

J. High Energy Phys.

196

334

View full text Add to dashboard Cite

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.

show abstract

Section: The Five-dimensional Solutions and Conformal Qcdmentioning

confidence: 97%

“…The effect of the flavor branes is encoded by the addition of a Dirac action to the closed string effective action. This setting has been further studied in [16,17].…”

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

View full text Add to dashboard Cite

show abstract

“…This is achieved by setting x(σ, τ ) = u(σ) + v τ . From the NambuGoto action on the background (3.28), it follows that the string Lagrangian density is proportional to 34) from which it follows that the canonical momentum density conjugate to u(σ) is 35) and, finally,…”

Section: Drag Forcementioning

confidence: 99%

Holography and unquenched quark-gluon plasmas

et al. 2007

View full text Add to dashboard Cite

We employ the string/gauge theory correspondence to study properties of strongly coupled quark-gluon plasmas in thermal gauge theories with a large number of colors and flavors. In particular, we analyze non-critical string duals of conformal (S)QCD, as well as ten dimensional wrapped fivebrane duals of SQCD-like theories. We study general properties of the dual plasmas, including the drag force exerted on a probe quark and the jet quenching parameter. We find that these plasma observables depend on the number of colors and flavors in the "QCD dual"; in particular, we find that the jet quenching parameter increases linearly with N f /N c at leading order in the probe limit. In the ten dimensional case we find a non trivial drag coefficient but a vanishing jet quenching parameter. We comment on the relation of this result with total screening and argue that the same features are shared by all known plasmas dual to fivebranes in ten dimensions. We also construct new D5 black hole solutions with spherical horizon and show that they exhibit the same features.

show abstract

“…In particular, one would like to go beyond the linear approximation for the pure N = 1 super Yang-Mills theory. Since the compactification is at string scale, an exact conformal field 15 It would be desirable to investigate the further breaking to Z 2 . theory approach to this problem would be most convincing -however, supersymmetry may validate a low-energy approach.…”

Section: Discussionmentioning

confidence: 99%

“…[44] and references therein). This should allow for a splitting of the multiplets analyzed in [19,15].…”

Section: Discussionmentioning

confidence: 99%

D-branes in non-critical superstrings and minimal super-Yang–Mills in various dimensions

Ashok

Murthy

Troost³

2006

Nuclear Physics B

View full text Add to dashboard Cite

We construct and analyze D-branes in superstring theories in even dimensions less than ten. The backgrounds under study are supersymmetric R d−1,1 × SL(2, R) k /U (1) where the level of the supercoset is tuned such as to provide bona fide string theory backgrounds. pure Yang-Mills theory with minimal supersymmetry. In the case with four macroscopic flat directions d = 4, we realize an N = 1 super Yang-Mills theory, and we interpret the backreaction for the dilaton as the running of the gauge coupling, and study the relation between R-symmetry breaking in the gauge theory and the backreaction on the RR axion.

show abstract

D-branes and SQCD in non-critical superstring theory

Cited by 38 publications

References 62 publications

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

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

Holography and unquenched quark-gluon plasmas

D-branes in non-critical superstrings and minimal super-Yang–Mills in various dimensions

Contact Info

Product

Resources

About