Dirac stars in Anti-de Sitter Spacetime
arxiv(2024)
摘要
In this paper, we construct the Dirac stars model composed of two Dirac
fields and Einstein gravity in four-dimensional Anti-de Sitter spacetime. We
consider the Dirac stars with free field (no self-interacting). Our
investigation focuses on understanding the relationship between
Arnowitt-Deser-Misner (ADM) mass, Noether charge, and binding energy in
relation to the cosmological constant. Furthermore, we extend the study to the
Dirac stars with self-interacting potentials. For the self-interacting Dirac
stars, three types of interactions are examined: only quartic, only sextic,
quartic and sextic interactions that is kind of Q-ball type interactions. In
these three distinct scenarios, it is essential to investigate the impact of
self-interaction constants on Dirac stars. Additionally, we study the Dirac
Q-balls in the AdS background.
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