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arXiv 2401.04547gr-qc
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反德西特时空中的狄拉克星

Dirac stars in Anti-de Sitter Spacetime

Xiao-Yu Zhang, Li-Zhao, Yong-Qiang Wang

AI总结:

本文在四维反德西特时空中构建了包含两个狄拉克场和爱因斯坦引力的狄拉克星模型,研究了自由场及三种自相互作用势下 ADM 质量、诺特荷和结合能与宇宙学常数的关系,并探讨了 AdS 背景下的狄拉克 Q-balls。

摘要:

本文在四维反德西特时空中构建了由两个狄拉克场和爱因斯坦引力组成的狄拉克星模型。我们考虑了具有自由场(无自相互作用)的狄拉克星。研究重点是理解 Arnowitt-Deser-Misner (ADM) 质量、诺特荷和结合能与宇宙学常数之间的关系。进一步,我们将研究扩展到具有自相互作用势的狄拉克星。对于自相互作用狄拉克星,考察了三种相互作用:仅四次、仅六次、以及四次和六次相互作用(即 Q-ball 型相互作用)。在这三种不同情形下,研究自相互作用常数对狄拉克星的影响至关重要。此外,我们还研究了 AdS 背景下的狄拉克 Q-balls。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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