Zobrazeno 1 - 10
of 217
pro vyhledávání: '"Shnir, Ya"'
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 domains of existence. The dependence of the solutions on the gauge coupling
Externí odkaz:
http://arxiv.org/abs/2311.12432
We construct and explore the solution space of two non-spinning, mini-boson stars in equilibrium, in fully non-linear General Relativity (GR), minimally coupled to a free, massive, complex scalar field. The equilibrium is due to the balance between t
Externí odkaz:
http://arxiv.org/abs/2210.01833
Autor:
Livramento, L. R., Shnir, Ya.
We consider the classical static soliton solutions of the Skyrme model with false vacuum potential. We make use of fully three-dimensional relaxation calculations to construct global energy minimizers in the sectors of topological degrees from $Q=1$
Externí odkaz:
http://arxiv.org/abs/2204.13079
We consider spherically symmetric $U(1)$ gauged boson stars in the two-component scalar Friedberg-Lee-Sirlin model with a symmetry breaking potential in 3+1 dimensional spacetime. Depending on the relative strength of gravity and the electromagnetic
Externí odkaz:
http://arxiv.org/abs/2112.06626
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 intangible probability density cloud of a single particle in the quantu
Externí odkaz:
http://arxiv.org/abs/2008.10608
Publikováno v:
Phys. Rev. D 100, 105003 (2019)
We study fermion modes localized on the kink in the 1+1 dimensional $\phi^4$ model, coupled to the Dirac fermions with backreaction. Using numerical methods we construct self-consistent solutions of the corresponding system of coupled integral-differ
Externí odkaz:
http://arxiv.org/abs/1909.12736
Einstein's gravity minimally coupled to free, massive, classical fundamental fields admits particle-like solutions. These are asymptotically flat, everywhere non-singular configurations that realise Wheeler's concept of a geon: a localised lump of se
Externí odkaz:
http://arxiv.org/abs/1906.05386
We consider the $U(1)$ gauged two-component Friedberg-Lee-Sirlin model in 3+1 dimensional Minkowski spacetime, which supports non-topological soliton configurations. Here we found families of axially-symmetric spinning gauged Q-balls, which possess b
Externí odkaz:
http://arxiv.org/abs/1906.01943
We study a new family of self-gravitating axially-symmetric, rotating boson stars in the two-component Friedberg-Lee-Sirlin model minimally coupled to Einstein gravity in four spacetime dimensions. In the flat space limit the boson stars tend to the
Externí odkaz:
http://arxiv.org/abs/1904.13379