N-Point dual functions for mesons with physical trajectories

Three - point functions for M N / S N orbifolds with N = 4 supersymmetry

The D1-D5 system is believed to have an ‘orbifold point’ in its moduli space where its low energy theory is a N = 4 supersymmetric sigma model with target space MN/SN , where M is T 4 or K3. We study correlation functions of chiral operators in CFTs arising from such a theory. We construct a basic class of chiral operators from twist fields of the symmetric group and the generators of the super...

Dual multiwavelet frames with symmetry from two-direction renable functions

n-point functions at finite temperature

We study n-point functions at finite temperature in the closed time path formalism. With the help of two basic column vectors and their dual partners we derive a compact decomposition of the time-ordered n-point functions with 2 components in terms of 2n−1 − 1 independent retarded/advanced n-point functions. This representation greatly simplifies calculations in the real-time formalism. PACS nu...

Fast n-point correlation functions and three-point lensing application

We present a new algorithm to rapidly compute the two-point (2PCF), three-point (3PCF) and n-point (n-PCF) correlation functions in roughly O(N) time for N particles, instead of O(Nn) as required by brute force approaches. This technique exploits node-to-node correlations of a recursive bisectional binary tree. A balanced tree construction minimizes the depth of the tree and the worst case erro...

Flow Equations for N Point Functions and Bound States

We discuss the exact renormalization group or flow equation for the effective action and its decomposition into one particle irreducible N point functions. With the help of a truncated flow equation for the four point function we study the bound state problem for scalar fields. A combination of analytic and numerical methods is proposed, which is applied to the Wick-Cutkosky model and a QCD-mot...