104 citations · 2k across the 128 of their papers we have counts for
7 papers · 2 filters
Harmonic Map Analysis of SU(N) Gravitating Skyrmions
Y. Brihaye, B. Hartmann, T. Ioannidou +1
In this paper the SU(N) Einstein-Skyrme system is considered. We express the chiral field (which is not a simple embedding of the SU(2) one) in terms of harmonic maps. In this way,…
Gravitating SU(N) Monopoles from Harmonic maps
Yves Brihaye, Betti Hartmann, Theodora Ioannidou +1
Spherically symmetric solutions of the SU(N) Einstein-Yang-Mills-Higgs system are constructed using the harmonic map ansatz. The problem reduces to solving a set of ordinary differ…
Born-Infeld strings in brane worlds
Yves Brihaye, Betti Hartmann
We study Born-Infeld strings in a six dimensional brane world scenario recently suggested by Giovannini, Meyer and Shaposhnikov (GMS). In the limit of the Einstein-Abelian-Higgs mo…
Spinning Solitons of a Modified Non-Linear Schroedinger equation
Yves Brihaye, Betti Hartmann, Wojtek J. Zakrzewski
We study soliton solutions of a modified non-linear Schroedinger (MNLS) equation. Using an Ansatz for the time and azimuthal angle dependence previously considered in the studies o…
Spherically symmetric Yang-Mills solutions in a 5-dimensional (Anti-) de Sitter space-time
Betti Hartmann, Yves Brihaye, Bruno Bertrand
We consider an Einstein-Yang-Mills Lagrangian in a five dimensional space-time including a cosmological constant. Assuming all fields to be independent of the extra coordinate, a d…
Strings in de Sitter space
Eugenio R. Bezerra de Mello, Yves Brihaye, Betti Hartmann
We study both global as well as local (Nielsen-Olesen) strings in de Sitter space. While these type of topological defects have been studied in the background of a de Sitter metric…