Lorentzian CFT 3-point functions in momentum space

Lorentz Surfaces and Lorentzian CFT

The interest in string Hamiltonian system has recently been rekindled due to its application to target-space duality. In this article, we explore another direction it motivates. In Sec. 1, conformal symmetry and some algebraic structures of the system that are related to interacting strings are discussed. These lead one naturally to the study of Lorentz surfaces in Sec. 2. In contrast to the ca...

1-type and biharmonic frenet curves in lorentzian 3-space*

1-type and biharmonic curves by using laplace operator in lorentzian 3-space arestudied and some theorems and characterizations are given for these curves.

On Four-point Functions in the CFT/AdS Correspondence

We discuss the properties of four-point functions in the context of the correspondence between a classical supergravity theory in the bulk of the Anti de Sitter (AdS) space and quantum conformal field theory (CFT) at the boundary. The contribution to a four-point function from the exchange of a scalar field of arbitrary mass in AdS space is explicitly identified with that of the corresponding o...

OPEs and 4-point Functions in AdS/CFT Correspondence

Recently 4-point correlation functions of axion and dilaton fields in type IIB SUGRA on AdS5 × S 5 were computed [1]. We reproduce from a CFT point of view all power law singular terms in these AdS 4-point amplitudes. We also calculate a corresponding 4-point function in the weak coupling limit, g YMN → 0. Comparison reveals the existence of a primary operator that contributes to these same sin...

Hypersurfaces with Constant Mean Curvature in a Lorentzian Space Form