协变量子黑洞的蒸发与命运
Hawking evaporation and the possibility of remnant formation for covariant quantum black holes
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中文总结 AI 辅助
研究协变量子黑洞对不同自旋粒子的蒸发情况,通过与史瓦西情形对比,发现其霍金辐射和质量损失率因粒子自旋而异,为检验圈量子引力提供可能途径。
中文摘要 AI 辅助
越来越多的现象和理论问题表明量子引力理论是必要的。本文研究了具有不同自旋粒子的协变量子黑洞的蒸发,并将结果与史瓦西情形进行比较。结果表明,协变量子黑洞的霍金辐射和质量损失率与史瓦西黑洞不同,且取决于发射粒子的自旋。这表明仅考虑无质量标量场情形下的黑洞蒸发可能不够,未来可能为检验圈量子引力提供一种可能途径。
英文摘要
Covariant quantum black holes (BHs) are an important development in loop quantum gravity (LQG), and investigations of their evaporation may offer a possible avenue for testing LQG. In this paper, we investigate the evaporation of covariant quantum BHs and the possibility of remnant formation. Our results show that covariant quantum BHs can leave remnants, calculated by analytical greybody factors for a massless scalar field. Nevertheless, the fully numerical results indicate mass loss rates of covariant quantum BHs are spin-dependent and differ from those of Schwarzschild BHs, due to spin-dependent greybody factors. In particular, these BHs evaporate faster than Schwarzschild BHs in the low-mass regime, with the evaporation being dominated by massless neutrino emission rather than scalar field emission, contrary to the scalar field dominance commonly assumed in previous studies. Therefore, considering only BH evaporation in the massless scalar field case may be insufficient and may even lead to misjudging BH fate. In addition, these results may provide a way to test LQG in the future.
发表机构
- School of Physics and Optoelectronics, South China University of Technology(华南理工大学物理与光电工程学院)
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