AdS/CFT-QCD-CMT Yi NTHU April 8 th, 2010
Contents D-brane (1995) AdS/CFT (1997) AdS/QCD (2004) AdS/CMT (2008)
+ + … Perturbative Strings
Non-Perturbative Objects Solitions RR sources Ends of open strings D-branes (1995)
Branes Scenario
D3 branes and N charged D3-brane Extreme limit Near horizon
Open/Closed strings duality Open strings Closed strings
AdS/CFT in Type IIB AdS/CFT conjecture (1997) N=4 SYM in 3+1 IIB on The precise relationship (1998)
Holography
Strong/Weak duality Effective coupling: Small curvature for SG: Small coupling in SG:
Gravity/Gauge duality String theory Gauge theory IIB Strings on N=4 SYM Strings on deformed AdS strong coupling theory?
AdS/QCD (Sakai-Sugimoto Model) D4 ●●●●● D8-D8 ●●●●●●●●●
String Picture
Gravity Picture: Low T
Phase Transition
Gravity Picture: High T
QCD Phase Diagram
Baryons as Wrapped D-brane
AdS/CMT (Superconductor) Einstein-Maxwell-charged scalar Backreaction and probe Instability and symmetry breaking
Schwarzschild AdS Black Hole
Probe Fields Probe ansatz At horizon At boundary
Condensation
Hairy Black Hole 3 hairs scalar hair
Conductivity Fluctuations of gauge field At boundary AdS/CFT dictionary Ohm’s law
Gap
Magnetic Field Meissner effect Type I superconductor Type II superconductor
Other models Charged dilaton black hole Chern-Simon’s term Probe D-branes String background
Summary AdS/CFT (1997) AdS/QCD (2004) AdS/CMT (2008) AdS/??? (20XX)