Betti Hartmann

• Abstract

  This project deals with the construction of black hole and soliton solutionsin extended scalar-tensor gravity models. While General Relativity remains the best theory we have for the gravitational interaction today, a number of questions arises with respect to observational data as well as general theoretical aspects. In recent years, scalar-tensor gravity models have been suggested to gi…

  Black holes and solitons in generalized scalar-tensor gravity models, AP.R

• Abstract

  The development of exact methods to study field theories is of crucial importance for the understanding of non-linear and non-perturbative (strong coupling) phenomena in Physics. Solitons are exact solutions of the so-called integrable field theories that possess an infinite number of conservation laws, and so are good candidates to lead to such exact methods. Unfortunately not many theor…

  The concept of quasi-integrability, AP.R SPRINT

• Abstract

  This research project focuses on linear topological defects arising through the spontaneous breaking of a U(1) symmetry, which determines their most salient properties. Examples are cosmic strings and vortex lines in cold atoms, respectively, which in spite of the widely different energy scales (the Electroweak or Grand Unification scales for cosmic strings, versus temperatures close to o…

  New structures of vortices: from cosmology to analogue models, AV.EXT

(Only some records are available in English at this moment)