Two-dimensional static black holes with pointlike sources (Q2487233)

The authors study static black hole solutions for generalized two-dimensional dilaton-gravity theories generated by pointlike mass sources with conformally coupled matter. Two-dimensional models differ by a special scalar field (dilaton) from higher-dimensional models. Here solutions are studied which come from static pointlike particles for models with the so-called power-law dilaton potential. Additionally the authors investigate the motion of test particles. It is shown, that for a conformal coupling of the sources the Newtonian potential grows linearly with the distance and hence the gravitational force is constant.