English

Einstein-Vlasov system with equal-angular momenta in $\text{AdS}_5$

General Relativity and Quantum Cosmology 2023-03-14 v2

Abstract

We investigate solutions of the 55--dimensional rotating Einstein-Vlasov system with an R×SU(2)×U(1)R \times SU(2) \times U(1) isometry group. In a five-dimensional spacetime, there are two independent planes of rotation, thus, considering U(1)U(1) symmetry on each rotation plane, we may impose an R×U(1)×U(1)R\times U(1) \times U(1) isometry to a stationary spacetime. Furthermore, when the values of the two angular momenta are equal to each other, the spatial symmetry gets enhanced to R×SU(2)×U(1)R\times SU(2)\times U(1) symmetry, and the spacetime has a cohomogeneity-1 structure. Imposing the same symmetry to the distribution function of the particles of which the Vlasov system consists, the distribution function can be dependent on three mutually independent and commutative conserved charges for particle motion (energy, total angular momentum on SU(2)SU(2) and U(1)U(1) angular momentum). We consider the distribution function which exponentially depends on the U(1)U(1) angular momentum and reduces to the thermal equilibrium state in spherical symmetry. Then, in this paper, we numerically construct solutions of the asymptotically AdS Einstein--Vlasov system.

Keywords

Cite

@article{arxiv.2210.17112,
  title  = {Einstein-Vlasov system with equal-angular momenta in $\text{AdS}_5$},
  author = {Hiroki Asami and Chul-Moon Yoo and Ryo Kitaku and Keiya Uemichi},
  journal= {arXiv preprint arXiv:2210.17112},
  year   = {2023}
}

Comments

21 pages

R2 v1 2026-06-28T04:49:31.346Z