# Chiral dynamics from AdS space

@article{Evans2004ChiralDF, title={Chiral dynamics from AdS space}, author={Nick Evans and Jonathan P. Shock}, journal={Physical Review D}, year={2004}, volume={70}, pages={046002} }

We study the low energy dynamics of pions in a gravity dual of chiral symmetry breaking. The string theory construction consists of a probe D7 brane in the Constable-Myers nonsupersymmetric background, which has been shown to describe chiral symmetry breaking in the pattern of QCD. We expand the D7 brane's Dirac-Born-Infeld action for fluctuations that correspond to the Goldstone mode and show that they take the form of a nonlinear chiral Lagrangian. We numerically compute the quark condensate… Expand

#### 109 Citations

Chiral symmetry breaking from five-dimensional spaces

- Physics
- 2005

Abstract Based on the AdS/CFT correspondence we study the breaking of the chiral symmetry in QCD using a simple five-dimensional model. The model gives definite predictions for the spectrum of vector… Expand

Quark Mass in the Sakai-Sugimoto Model of Chiral Symmetry Breaking

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We re-analyze D8 brane embeddings in the geometry of a D4 brane wrapped on a circle that describe chiral symmetry breaking in a strongly coupled non-supersymmetric gauge theory. We argue that if the… Expand

Criticality, scaling and chiral symmetry breaking in external magnetic field

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We consider a D7-brane probe of AdS5 × S5 in the presence of pure gauge B-field. The dual gauge theory is flavored Yang-Mills theory in external magnetic field. We explore the dependence of the… Expand

Brane Embeddings and Chiral Symmetry Breaking

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We study the embedding of D7 brane probes in five geometries that are deformations of AdS 5 × S 5. Each case corresponds to the inclusion of quark fields in a dual gauge theory where we are… Expand

D7 brane embeddings and chiral symmetry breaking

- Physics
- 2005

We study the embedding of D7 brane probes in five geometries that are deformations of AdS5 × S5. Each case corresponds to the inclusion of quark fields in a dual gauge theory where we are interested… Expand

Scalar effective potential for D7 brane probes which break chiral symmetry

- Physics
- 2006

We consider D7 brane probes embedded in deformed AdS5 × S5 supergravity backgrounds which are non-supersymmetric in the interior. In the context of the generalised AdS/CFT correspondence, these… Expand

Chiral symmetry breaking as open string tachyon condensation

- Physics
- 2007

Abstract We consider a general framework to study holographically the dynamics of fundamental quarks in a confining gauge theory. Flavors are introduced by placing a set of (coincident) branes and… Expand

Chiral dynamics and meson with non-commutative dipole field in gauge/gravity dual

- Physics
- 2008

Abstract Apply the T-duality and smeared twist to the D3-brane solution one can construct the supergravity backgrounds which may dual to supersymmetric or non-supersymmetric non-commutative dipole… Expand

Delocalization from anomaly inflow and intersecting brane dynamics

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- 2007

We study intersecting D-brane models, that describe at low energies a two dimensional chiral fermion theory localized at the intersection. The fermions are coupled to gauge fields in the bulk. The… Expand

NGN, QCD 2 and chiral phase transition from string theory

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We construct a D2-D8-8 configuration in string theory, it can be described at low energy by two dimensional field theory. In the weak coupling region, the low energy theory is a nonlocal… Expand

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