We study various aspects of modeling astrophysical black holes using the
recently introduced semiclassical formalism of physical black holes (PBHs).
This approach is based on the minimal requirements of observability and
regularity of the horizons. We demonstrate that PBHs do not directly couple to
the cosmological background in the current epoch, and their equation of state
renders them unsuitable for describing dark energy. Utilizing their properties
for analysis of more exotic models, we present a consistent semiclassical
scenario for a black-to-white hole bounce and identify obstacles to the
transformation from a black hole horizon to a wormhole mouth.

The Future of Modeling Astrophysical Black Holes

In this article, we examine the conclusions of various studies on modeling astrophysical black holes using the recently introduced semiclassical formalism of physical black holes (PBHs). Based on the minimal requirements of observability and regularity of the horizons, this approach provides valuable insights into the behavior of black holes.

One of the key findings is that PBHs do not directly interact with the cosmological background in the current epoch. This means that they cannot be used to describe or explain dark energy, which is an important component of the expanding universe. This conclusion has implications for our understanding of the universe’s evolution and the role of black holes within it.

However, while PBHs may not be suitable for studying dark energy, they can still be utilized in the analysis of more exotic models. By exploring their properties, researchers have proposed a consistent semiclassical scenario for a black-to-white hole bounce. This theoretical framework suggests the possibility of black holes transforming into white holes, which could have profound implications for our understanding of spacetime dynamics.

Despite these exciting prospects, there are challenges that need to be addressed in order to fully understand and utilize PBHs in modeling astrophysical phenomena. One major obstacle is the transformation from a black hole horizon to a wormhole mouth. Wormholes are hypothetical tunnels in spacetime that could potentially enable faster-than-light travel or even connections between different parts of the universe. Understanding the process by which a black hole could evolve into a wormhole mouth is crucial but remains a complex problem that requires further research.

Roadmap for Future Exploration

  1. Further investigation into the behavior and properties of PBHs to gain a deeper understanding of their nature.
  2. Explore alternative approaches to modeling dark energy, as PBHs are not suitable for this purpose.
  3. Continued analysis of the semiclassical scenario for black-to-white hole bounce, refining the theoretical framework and exploring its implications.
  4. Investigate and overcome the obstacles in the transformation from a black hole horizon to a wormhole mouth, potentially unlocking new insights into spacetime dynamics.

Overall, the study of modeling astrophysical black holes using the semiclassical formalism of physical black holes presents both challenges and opportunities. By furthering our understanding of PBHs and exploring their various applications, researchers can uncover new insights into the mysteries of black holes and the nature of the universe itself.

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