Principal Equatorial Null Geodesic Congruences in the Kerr Metric, and Their Quantum Propagators  

作　　者：Josué G. Mateos Trujillo Miguel Socolovsky Josué G. Mateos Trujillo;Miguel Socolovsky(Instituto de Ciencias Nucleares, Universidad Nacional Autnoma de Mxico, Cd. Universitaria, Ciudad de Mxico, Mxico;Instituto de Astronoma y Fsica del Espacio, Universidad de Buenos Aires-CONICET, Ciudad de Buenos Aires, Argentina)

机构地区：[1]Instituto de Ciencias Nucleares, Universidad Nacional Autnoma de Mxico, Cd. Universitaria, Ciudad de Mxico, Mxico [2]Instituto de Astronoma y Fsica del Espacio, Universidad de Buenos Aires-CONICET, Ciudad de Buenos Aires, Argentina

出　　处：《Journal of High Energy Physics, Gravitation and Cosmology》2024年第3期906-917,共12页高能物理（英文）

摘　　要：Using the Raychaudhuri equation, we associate quantum probability amplitudes (propagators) to equatorial principal ingoing and outgoing null geodesic congruences in the Kerr metric. The expansion scalars diverge at the ring singularity;however, the propagators remain finite, which is an indication that at the quantum level singularities might disappear or, at least, become softened.Using the Raychaudhuri equation, we associate quantum probability amplitudes (propagators) to equatorial principal ingoing and outgoing null geodesic congruences in the Kerr metric. The expansion scalars diverge at the ring singularity;however, the propagators remain finite, which is an indication that at the quantum level singularities might disappear or, at least, become softened.

关 键 词：Kerr Metric Principal Null Geodesics PROPAGATORS 

分 类 号：O15[理学—数学]