55 citations · 157 across the 9 of their papers we have counts for
9 papers
Coupling of Higher Spin Gauge Fields to a Scalar Field in and their Holographic Images in the -Dimensional Sigma Model
T. Leonhardt, R. Manvelyan, W. Ruehl
The three-point functions of two scalar fields and the higher spin field of HS(4) on the one side and of their proposed holographic images and $\mathcal{J^{(\e…
The group approach to AdS space propagators: A fast algorithm
Thorsten Leonhardt, Ruben Manvelyan, Werner Ruhl
In this letter we show how the method of [4] for the calculation of two-point functions in d+1-dimensional AdS space can be simplified. This results in an algorithm for the evaluat…
The minimal conformal O(N) vector sigma model at d=3
Thorsten Leonhardt, Werner Ruehl
For the minimal O(N) sigma model, which is defined to be generated by the O(N) scalar auxiliary field alone, all n-point functions, till order 1/N included, can be expressed by ele…
The group approach to AdS space propagators
Thorsten Leonhardt, Ruben Manvelyan, Werner Ruehl
We show that AdS two-point functions can be obtained by connecting two points in the interior of AdS space with one point on its boundary by a dual pair of Dobrev's boundary-to-bul…
On the proposed AdS dual of the critical O(N) sigma model for any dimension 2<d<4
T. Leonhardt, A. Meziane, W. Ruehl
We evaluate the 4-point function of the auxiliary field in the critical O(N) sigma model at O(1/N) and show that it describes the exchange of tensor currents of arbitrary even rank…
General graviton exchange graph for four point functions in the AdS/CFT correspondence
Thorsten Leonhardt, Werner Ruehl
In this note we explicitly compute the graviton exchange graph for scalar fields with arbitrary conformal dimension Δin arbitrary spacetime dimension d. This results in an analytic…