A dual gravity study of the imageD compact image gauge theory coupled with strongly interacting matter fields Original Research Article

We consider the D2-brane probe action in the gravity background dual to N coincident Dp-branes by treating the separation between the D2- and Dp-branes as a non-dynamical parameter for image. The gauge coupling, the core size of a non-BPS instanton and the mass gap of the compact image gauge theory in the D2-brane are determined as a function of the separation in the type IIA gravity region. The results are interpreted in terms of the imageD image gauge theory coupled with the matter fields which are also strongly coupled with the imageD image gauge field. It is shown that strong coupling of the matter fields to the image gauge field can drastically modify their screening of the image gauge field. The non-perturbative dependence of the image gauge coupling on the energy scale is obtained.