Transversely-intersecting D-branes at finite temperature and chiral phase transition
arXiv:0803.1277 · doi:10.1088/1126-6708/2009/05/035
Abstract
We consider Sakai-Sugimoto like models consisting of Dq-Dp-anti-Dp-branes where flavor Dp and anti-Dp-branes transversely intersect color Dq-branes along two (r+1)-dimensional subspaces. For some values of p and q, the theory of intersections dynamically breaks non-Abelian chiral symmetry which is holographically realized as a smooth connection of the flavor branes at some point in the bulk of the geometry created by Dq-branes. We analyze the system at finite temperature and map out different phases of the theory representing chiral symmetry breaking and restoration. For q<5 we find that, unlike the zero-temperature case, there exist two branches of smoothly-connected solutions for the flavor branes, one getting very close to the horizon of the background and the other staying farther away from it. At low temperatures, the solution which stays farther away from the horizon determines the vacuum. For background D5 and D6-branes we find that the flavor branes, like the zero temperature case, show subtle behavior whose dual gauge theory interpretation is not clear. We conclude with some comments on how chiral phase transition in these models can be seen from their open string tachyon dynamics.
35 pages, 7 figures, minor changes, published version
References in corpus (22)
- A holographic model of deconfinement and chiral symmetry restoration
- Chiral symmetry breaking as open string tachyon condensation
- Cold Nuclear Matter In Holographic QCD
- Holographic Nuclear Physics
- Holographic chiral phase transition with chemical potential
- Sakai-Sugimoto model, Tachyon Condensation and Chiral symmetry Breaking
- Chiral Phase Transition from String Theory
- Holographic Duals of Long Open Strings
- External Fields and Chiral Symmetry Breaking in the Sakai-Sugimoto Model
- NJL and QCD from String Theory
- Quark mass and condensate in HQCD
- Response of Holographic QCD to Electric and Magnetic Fields
- Stringy NJL and Gross-Neveu models at finite density and temperature
- Quark Mass Deformation of Holographic Massless QCD
- Chiral Symmetry Breaking from Intersecting D-Branes
- Stability of strings binding heavy-quark mesons
- Dense and Hot Holographic QCD: Finite Baryonic E Field
- NGN, QCD_2 and chiral phase transition from string theory
- On quark masses in holographic QCD
- Open Wilson Lines and Chiral Condensates in Thermal Holographic QCD
- Phase Transitions in Separated and anti- Branes at Finite Temperature
- Chiral Symmetry Breaking in Brane Models