Thermal correlation functions in CFT and factorization

May 28, 2021
26 pages
Published in:
  • JHEP 11 (2021) 049
  • Published: Nov 8, 2021
e-Print:
Report number:
  • ICCUB-21-007

Citations per year

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Abstract: (Springer)
We study 2-point and 3-point functions in CFT at finite temperature for large dimension operators using holography. The 2-point function leads to a universal formula for the holographic free energy in d dimensions in terms of the c-anomaly coefficient. By including α′ corrections to the black brane background, we reproduce the leading correction at strong coupling. In turn, 3-point functions have a very intricate structure, exhibiting a number of interesting properties. In simple cases, we find an analytic formula. When the dimensions satisfy ∆i_{i} = ∆j_{j} + ∆k_{k}, the thermal 3-point function satisfies a factorization property. We argue that in d > 2 factorization is a reflection of the semiclassical regime.
Note:
  • 26 pages
  • AdS-CFT Correspondence
  • Conformal Field Theory
  • field theory: conformal
  • correlation function: thermal
  • operator: dimension
  • black brane: background
  • factorization
  • holography
  • reflection
  • free energy