Adding flavor to AdS/CFT

By A. Karch, E. Katz. 2002

1,124 citations recorded by the source corpus.

Coupling fundamental quarks to QCD in the dual string representation corresponds to adding the open string sector. Flavors therefore should be represented by space‐time filling D‐branes in the dual 5d closed string background. This requires several interesting properties of D‐branes in AdS. D‐branes have to be able to end in thin air in order to account for massive quarks, which only live in the UV region. They must come in distinct sets, representing the chiral global symmetry, with a bifundamental field playing the role of the chiral condensate. We show that these expectations are born out in several supersymmetric examples. To analyze most of these properties it is not necessary to go beyond the probe limit in which one neglects the backreaction of the flavor D‐branes.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/435b1203ce290001e0b88198d4e7a430b41c703d

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In Nuclear and High Energy Physics

1. T. Takayanagi
2. R. Myers
3. S. Hartnoll
4. S. Gubser
5. V. Hubeny
6. M. Rangamani
7. S. Sachdev
8. D. Mateos

Citations in the corpus

• Non-critical holography and four-dimensional CFT's with fundamentals (2005, background): “2 Understanding flavors in string duals beyond the quenched approximation introduced in [ 14 ] is still an”
• Metallic AdS/CFT (2007, methodology): “Our method easily generalizes to a wide class of systems of probe branes in various backgrounds.”
• Towards strange metallic holography (2009, background): “In the case of massive flavors at T = μ = 0 [46], the volume shrinks smoothly to zero at a finite radial position v = v0; the brane forms a cigar-like shape with its tip at v0.”
• Quarks in an External Electric Field in Finite Temperature Large N Gauge Theory (2007, neutral): “15 54 v3 [ he p- Contents”
• Dynamical SUSY breaking at meta-stable minima from D-branes at obstructed geometries (2006, background): “As already mentioned, the natural way to introduce fundamental flavors in D3-brane quiver gauge theories is by adding D7-branes passing through the singular points [55].”
• A holographic model of deconfinement and chiral symmetry restoration (2006, background): “In the context of holographic dual models, quarks in the fundamental representation of SU(Nc) were first incorporated in terms of probe D branes in [6](1).”
• Intersecting D3-branes and holography (2002, methodology): “In [17, 18] spacetime filling D7-branes were added to the AdS5/CFT4 correspondence in order to study flavors in supersymmetric extensions of QCD.”
• Light quark energy loss in strongly coupled N=4 supersymmetric Yang-Mills plasma (2008, methodology): “On the gravitational side of the gauge/gravity correspondence, the addition of a N = 2 hypermultiplet to the N = 4 SYM theory is accomplished by adding a D7 brane to the 10d geometry [38].”
• Chiral Symmetry Breaking and Pions in Non-Supersymmetric Gauge/Gravity Duals (2003, background): “Note that the boundary between the Karch-Katz and condensate solutions is at a critical value of the mass m = mcrit such that w6(ρ = 0) = √ 1/2b.”
• Photon and dilepton production in supersymmetric Yang-Mills plasma (2006, background): “Adding fundamental representation matter to N = 4 SYM corresponds, in the gravity dual, to the addition of D7 branes embedded in the AdS5 × S5 geometry [47].”
• Holographic spectral functions and diffusion constants for fundamental matter (2007, background): “Fields transforming in the fundamental representation of the gauge group can be introduced in the gravity dual by inserting a second set of D-branes in the supergravity background [5].”
• Gluon energy loss in the gauge-string duality (2008, background): “In the construction of [35], fundamentally charged quarks come from strings stretched between the D3-branes and D7-branes, where the D3branes create the AdS5 (or AdS5-Schwarzschild) geometry, and the D7-branes are usually treated in the probe approximation.”
• Meson Spectroscopy in AdS/CFT with Flavour (2003, methodology): “Note that the orientifold plane is necessary in flat space to cancel the D7-brane charge; the D7-branes in AdS5 × S5, however, carry no net charge because they wrap a contractible cycle [1].”
• Holographic black hole chemistry (2015, neutral): “Maybe the simplest example where one has an interesting approximation with only two terms is the case of flavor branes [26].”
• Energy loss of a heavy quark moving through Script N = 4 supersymmetric Yang-Mills plasma (2006, background): “Introducing a flavor of fundamental representation quarks corresponds, in the gravity dual of the four dimensional field theory, to the addition of a D7-brane [37].”
• Low energy hadron physics in holographic QCD (2004, methodology): “4) A. Karch, E. Katz and N. Weiner, Phys.”
• Probing flavored mesons of confining gauge theories by supergravity (2003, methodology): “For instance, D7 and D5 probe configurations in AdS5×S(5) were found [5] that depend on one parameter, being identified with the mass of flavors.”