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Mellin Representation of Conformal Correlation Functions in the AdS/CFT G.A. Kerimov Trakya University Edirne , Turkey. `. 7th Mathematical Physics Meeting 9-19 September 2012 Belgrade Serbia.
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Mellin Representation of Conformal Correlation Functions in the AdS/CFT G.A. Kerimov Trakya University Edirne, Turkey ` 7th Mathematical Physics Meeting 9-19 September 2012 Belgrade Serbia
Belgrade, 9 September 2012 2 Outline • I. Introduction • Scalar Field Theory in the EAdS/CFT • Momentum-space Representation of CFT Correlators • IV. Mellin Amlitudes in EAdS/CFT ETH Zurich, 30 June 2010
Belgrade, 9 September 2012 3 Introducton Mellin amplitudes: Mack (2009)
Belgrade, 9 September 2012 4 Introducton Mellin amplitudes: with Mack (2009)
Belgrade, 9 September 2012 5 Introducton Mellin amplitudes: with Mack (2009)
Belgrade, 9 September 2012 6 Introducton Mellin amplitudes: with Mack (2009)
Belgrade, 9 September 2012 7 Introducton Mellin amplitudes are simple meromorphic functions of their arguments Mack (2009) At large the Mellin amplitudes are related to the S-matrix in flat space Penedones (2011)
Belgrade, 9 September 2012 8 Scalar Field Theory in the EAdS/CFT EAdS:
Belgrade, 9 September 2012 9 Scalar Field Theory in the EAdS/CFT EAdS: Kerimov (2007) with
Belgrade, 9 September 2012 10 Scalar Field Theory in the EAdS/CFT
Belgrade, 9 September 2012 11 Scalar Field Theory in the EAdS/CFT where : : denotes Wick ordering
Belgrade, 9 September 2012 12 Scalar Field Theory in the EAdS/CFT Horospherical coordinates:
Belgrade, 9 September 2012 13 Scalar Field Theory in the EAdS/CFT Horospherical coordinates:
Belgrade, 9 September 2012 14 Scalar Field Theory in the EAdS/CFT
Belgrade, 9 September 2012 15 Scalar Field Theory in the EAdS/CFT
Belgrade, 9 September 2012 16 Scalar Field Theory in the EAdS/CFT
Belgrade, 9 September 2012 17 Scalar Field Theory in the EAdS/CFT CFT Correlators: CFT correlators in perturbation theory can be calculated from this by using Wick's theorem. The result is a set of rules, analogous to Feynman rules, namely
Belgrade, 9 September 2012 18 Momentum-space Representation of CFT Correlators Wigner coefficients of SO(d+1,1) : Kerimov (1985) where
Belgrade, 9 September 2012 19 Momentum-space Representation of CFT Correlators Feynman rules: Vertex : or with External line : Enternal line Integrate over and
Belgrade, 9 September 2012 20 Momentum-space Representation of CFT Correlators p1 p4 p5 p3 p2 Figure 1: Four-point Witten diagram in cubic scalar theory Associated 4-point function is
Belgrade, 9 September 2012 21 Mellin amplitudes via EAdS/CFT Inserting the integral representation where
Belgrade, 9 September 2012 22 Mellin amplitudes via EAdS/CFT Inserting the integral representation where one finds with
Belgrade, 9 September 2012 23 Mellin amplitudes via EAdS/CFT Symanziks n-star formula Symanzik (1972) with
Belgrade, 9 September 2012 24 Mellin amplitudes via EAdS/CFT 4-point Mellin amplitude: where
Belgrade, 9 September 2012 25 Mellin amplitudes via EAdS/CFT 4-point Mellin amplitude:
Belgrade, 9 September 2012 26 Thank you! ETH Zurich, 30 June 2010