Relation between circular photon orbits and the stability of wormholes with the thin shell of a barotropic fluid

Autor: Tsukamoto, Naoki, Kokubu, Takafumi
Rok vydání: 2023
Předmět:
Zdroj: Phys. Rev. D 109, 024047 (2024)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevD.109.024047
Popis: We cut a general, static, spherically symmetric spacetime and paste its copy to make a wormhole with a thin shell of any barotropic fluid in general relativity. We show that the stability of the thin-shell wormhole is characterized by a set of circular photon orbits called an (anti)photon sphere in the original spacetime if a momentum flux passing through a throat is prohibited. Our result will be useful to classify the stability of the thin shell on the throat against linearized spherically symmetric perturbations.
Comment: 8 papes, 2 figures, accepted for publication in Physical Review D
Databáze: arXiv