4 papers
Gravitational evolution and stability of boson halos
Jayashree Balakrishna, Franz E. Schunck
We investigate the gravitational evolution of dark matter halos made up of a massless bosonic field. The coupled Einstein-Klein-Gordon equations are solved numerically, showing tha…
A scalar field matter model for dark halos of galaxies and gravitational redshift
Franz E. Schunck
We analyze the spherically symmetric Einstein field equation with a massless complex scalar field. We can use the Newtonian solutions to fit the rotation curve data of spiral and d…
Boson Stars: Early History and Recent Prospects
Eckehard W. Mielke, Franz E. Schunck
Boson stars are descendants of the so-called geons of Wheeler, except that they are built from scalar particles instead of electromagnetic fields. If scalar fields exist in nature,…
Vortices, flux tubes and other structures in the Ginzburg-Landau model: a possible fine structure of the mixed state?
Yuri N. Obukhov, Franz E. Schunck
We present new regular static isolated cylindrically symmetric solutions for the Ginzburg-Landau model which have finite Gibbs free energy. These configurations (which we call the…