New black-to-white hole solutions with improved geometry and energy conditions

We construct new black-to-white hole solutions which connect the geometry of spacetime at some gluing surface inside the horizon. The continuity of the metric can be guaranteed up to the arbitrary order which is controlled by the power factor n. This sort of black-to-white holes is characterized by...

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Bibliographic Details
Published inScience China. Physics, mechanics & astronomy Vol. 67; no. 7; p. 270412
Main Authors Feng, Zhongwen, Ling, Yi, Wu, Xiaoning, Jiang, Qingquan
Format Journal Article
LanguageEnglish
Published Beijing Science China Press 01.07.2024
Springer Nature B.V
Subjects
Astronomy
Black holes
Classical and Continuum Physics
Energy
Geodesy
Geometry
Gravitational waves
Gravity
Mathematics
Observations and Techniques
Physics
Physics and Astronomy
Power factor
Science
Singularity (mathematics)
Spacetime
Theory of relativity
White holes (astronomy)
regular black hole
singularity
energy condition
quantum gravity
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Summary:We construct new black-to-white hole solutions which connect the geometry of spacetime at some gluing surface inside the horizon. The continuity of the metric can be guaranteed up to the arbitrary order which is controlled by the power factor n. This sort of black-to-white holes is characterized by the sub-Planckian scalar curvature, independent of the mass of black-to-white holes. More importantly, we show that the energy condition is only violated within a small region near the gluing surface. The geodesics of particles within the region from black hole to white hole is also analyzed. It turns out that the matter falling into the black hole may pass through the center without singularity and come out from the white hole. This scenario provides novel ideas for understanding the information loss paradox in traditional black hole physics.
ISSN:1674-7348
1869-1927
DOI:10.1007/s11433-023-2373-0