Temperature of D3-branes off extremality
Abstract
We discuss non-extremal rotating D3-branes. We solve the wave equation for scalars in the supergravity background of certain distributions of branes and compute the absorption coefficients. The form of these coefficients is similar to the gray-body factors associated with black-hole scattering. They are given in terms of two different temperature parameters, indicating that fields (open string modes) do not remain in thermal equilibrium as we move off extremality. We discuss the microscopic implications of this result in terms of the longitudinal and transverse to the brane string modes. This should shed some light on the origin of the disagreement between the supergravity and conformal field theory results on the free energy of a system of non-coincident D-branes.Keywords
All Related Versions
This publication has 0 references indexed in Scilit: