2023-09-28 04:00:03
Kerr’s extreme black holes might hold keys to probing unknown physical phenomena. These celestial objects, characterized by theoretically infinite gravitational forces at their horizon, highlight unexpected limits of fundamental physics. fundamental word can refer to several meanings.).
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Black holes are regions of space where gravity is so intense that it prevents any matter or wave from propagating. of a disturbance producing an electromagnetic variation in its path…) to escape. So-called “extreme Kerr” black holes represent a particular subcategory. Unlike typical black holes, these entities have coinciding interior and exterior horizons, and their rotation reaches a maximum speed.
A team of researchers from the University of California at Santa Barbara, the University of Warsaw and the University of Cambridge (The University of Cambridge is a British university known throughout the world.) carried out a theoretical study on these fascinating objects. Published in the journal Physical Review Letters, the study suggests that the unique properties of these black holes might make them ideal subjects for probing new laws of physics.
Maciej Kolanowski, Gary Horowitz and Jorge Santos had already shown that these black holes were affected by infinite tidal forces if a cosmological constant was present. However, these effects disappear when this constant is zero, as is often assumed in astrophysical scenarios.
Grant Remmen joined the team to test the idea that quantum corrections to Einstein’s gravity might themselves induce singularities on extreme black hole horizons. By incorporating quantum corrections, the researchers discovered that the horizons of these black holes become singular, with infinite tidal forces.
This result is in stark contrast to standard black holes, where tidal forces only become infinite at the center of the black hole. The calculations also revealed that the geometry of space-time was introduced in the early 1900s. and resumption…) near the horizon (Conceptually, the horizon is the limit of what can be observed, due to its own…) of these black holes is sensitive to new forms of physics at higher energies.
The study shows that extreme Kerr black holes might be powerful tools for probing as yet unexplored physical phenomena. Although the researchers still have questions to answer, including whether singularities can be eliminated by physical phenomena, their work paves the way for new research.
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