Sakai-Sugimoto model, Tachyon Condensation and Chiral symmetry Breaking
arXiv:0708.3233 · doi:10.1088/1126-6708/2008/01/055
Abstract
We modify the Sakai-Sugimoto model of chiral symmetry breaking to take into account the open string tachyon which stretches between the flavour D8-branes and anti D8-branes. There are several reasons of consistency for doing this: (i) Even if it might be reasonable to ignore the tachyon in the ultraviolet where the flavour branes and antibranes are well separated and the tachyon is small, it is likely to condense and acquire large values in the infrared where the branes meet. This takes the system far away from the perturbatively stable minimum of the Sakai-Sugimoto model; (ii) The bifundamental coupling of the tachyon to fermions of opposite chirality makes it a suitable candidate for the quark mass and chiral condensate parameters. We show that the modified Sakai-Sugimoto model with the tachyon present has a classical solution satisfying all the desired consistency properties. In this solution chiral symmetry breaking coincides with tachyon condensation. We identify the parameters corresponding to the quark mass and the chiral condensate and also briefly discuss the mesonic spectra.
18 pages, latex; v3; conclusion in subsection 3.1 modified and appropriate changes made in the abstract and introduction to reflect this; typos corrected; version to appear in JHEP
References in corpus (12)
- A holographic model of deconfinement and chiral symmetry restoration
- Chiral symmetry breaking as open string tachyon condensation
- Holographic melting and related properties of mesons in a quark gluon plasma
- Chiral Dynamics of Baryons from String Theory
- Holographic Nuclear Physics
- Baryons in Holographic QCD
- Chiral Phase Transition from String Theory
- NJL and QCD from String Theory
- Quark mass and condensate in HQCD
- On Dp-Dp+4 systems, QCD dual and phenomenology
- Sakai-Sugimoto Brane System at High Density
- Non-abelian expansion of S-matrix elements and non-abelian tachyon DBI action
Cited by in corpus (41)
- Holographic Duals of Long Open Strings
- Rho meson condensation at finite isospin chemical potential in a holographic model for QCD
- An AdS/QCD model from tachyon condensation: II
- Tachyon condensation and quark mass in modified Sakai-Sugimoto model
- Holographic modeling of nuclear matter and neutron stars
- Glueball Decay in Holographic QCD
- On Wess-Zumino terms of Brane-Antibrane systems
- Anomalous Form Factor of the Neutral Pion in Extended AdS/QCD Model with Chern-Simons Term
- Pion in the Holographic Model with 5D Yang-Mills Fields
- Comments on Baryons in Holographic QCD
- Holographic approach to compact stars and their binary mergers
- Baryons and the Chern-Simons term in holographic QCD with three flavors
- Stability of cylindrical thin shell wormhole during evolution of universe from inflation to late time acceleration
- On higher derivative corrections to Wess-Zumino and Tachyonic actions in type II super string theory
- Isospin asymmetry in holographic baryonic matter
- Layers of deformed instantons in holographic baryonic matter
- Open Wilson Lines and Chiral Condensates in Thermal Holographic QCD
- Sakai-Sugimoto Brane System at High Density
- Regge theory in a Holographic dual of QCD in the Veneziano Limit
- Constructing warm inflationary model in brane-antibrane system
- Gravitational form factors of pion from top-down holographic QCD
- Null Melvin Twist to Sakai-Sugimoto model
- Radiative Meson and Glueball Decays in the Witten-Sakai-Sugimoto Model
- On higher derivative corrections of tachyon action
- Tachyon-dependent Chern-Simons terms and the V-QCD Baryon
- Weak-Interacting Holographic QCD
- Highly Symmetric D-brane-Anti-D-brane Effective Actions
- Chiral Condensates in Finite Density Holographic NJL Model from String Worldsheets
- Phases of a 10-D Holographic hard wall model
- Toward Bound-State Approach to Strangeness in Holographic QCD
- Holographic Dual of QCD from Black D5 Branes
- Chiral Symmetry Breaking in Brane Models
- BCS Instability and Finite Temperature Corrections to Tachyon Mass in Intersecting D1-Branes
- All-Order Quartic Couplings in Highly Symmetric D-brane-Anti-D-brane Systems
- Scalar-glueball-mediated scale-anomaly dominance of the confining pressure of the pion in holographic QCD
- All Order Corrections to Fermionic Couplings of D-brane-Anti-D-brane Effective Actions
- Intersecting branes and NambuJona-Lasinio model
- Confinement and Non-perturbative Tachyons in Brane-Antibrane Systems
- Low Energy Pion-Pion Elastic Scattering in Sakai-Sugimoto Model
- Background field and time dependence effects in holographic models
- AdS/QCD and Type 0 String Theory