50 citations · 50 across the 6 of their papers we have counts for
6 papers
Two types of boson stars in gauged -dimensional sigma-model
Jutta Kunz, Aliaksei Mikhaliuk, Yakov Shnir
We investigate boson stars in an scalar field theory with a symmetry-breaking potential. By constructing numerically spherically symmetric solutions, we demonstrate that the…
Gravitating Skyrmions with localized fermions
Vladimir Dzhunushaliev, Vladimir Folomeev, Jutta Kunz +1
We consider self-gravitating Skyrmions in the presence of Dirac fermions, that carry spin and isospin. By varying the gravitational and the Yukawa coupling constants, we investigat…
Hairy dyonic Reissner-Nordström black holes in an Einstein-Maxwell-Friedberg-Lee-Sirlin type model
Jutta Kunz, Victor Loiko, Yakov Shnir
We construct spherically symmetric dyonic black holes in a generalized Maxwell-Friedberg-Lee-Sirlin type model with a complex scalar doublet and a symmetry breaking potential {for…
Fermion states localized on a self-gravitating Skyrmion
Vladimir Dzhunushaliev, Vladimir Folomeev, Jutta Kunz +1
We investigate self-gravitating solutions of the Einstein-Skyrme theory coupled to spin-isospin Dirac fermions and consider the dependence of the spectral flow on the effective gra…
Skyrmions and pion stars in the gauged Einstein-Skyrme model
R. Kirichenkov, J. Kunz, Nobuyuki Sawado +1
We consider topological and non-topological regular soliton solutions in the Einstein-Maxwell-Skyrme theory. We analyze the properties of these solutions and determine their domain…
Multipolar boson stars: macroscopic Bose-Einstein condensates akin to hydrogen orbitals
C. A. R. Herdeiro, J. Kunz, I. Perapechka +2
Boson stars are often described as macroscopic Bose-Einstein condensates. By accommodating large numbers of bosons in the same quantum state, they materialize macroscopically the i…