Black Hole Firewall: Exploring the Limits of Energy and Entropy

In summary, the conversation discusses the concept of a black hole evaporating and the idea of a firewall forming around it. The energy and entropy of the black hole cannot increase if the firewall forms. The singularity is believed to be responsible for the horizon, but the firewall hypothesis suggests that there may be another state of matter inside the black hole. A paper by Rovelli proposes a theory that explains the singularity and resolves the information loss problem.
  • #1
jamg.97
5
0
I was thinking about how a black hole evaporates and the firewall idea. If after Page time a firewall forms around the black hole, does that mean that the energy/mass, and entropy cannot increase anymore? The energy of the black hole is essentially supposed to be in the singularity, right? I think that is how it has an increase in energy. If the object coming into the black hole hits the firewall, then it cannot reach the singularity. Am I wrong about this? Am I misunderstanding a concept? Please help me clarify this.
 
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  • #2
For starters, taking the firewall hypothesis as true, any quantum gravity theory of which it is a part would have no interior singularity. Instead, there would be some not yet understood state of matter distributed in some not yet understood way in the interior. Can you try to rephrase your question with this in mind?
 
  • #3
Isn't the singularity what makes the horizon? The horizon is a point of no return, but what causes it if there is no singularity?
 
  • #4
jamg.97 said:
Isn't the singularity what makes the horizon? The horizon is a point of no return, but what causes it if there is no singularity?

One possible answer to that question is this paper: google "rovelli star"
which will direct you to http://arxiv.org/abs/1401.6562.

It conjectures what is there instead of a "singularity" (a mathematical breakdown with infinite density)
and resolves the information loss problem, also gets rid of firewall. So you might be interested.
 
  • #5
Wow! This is quite an awesome paper. Thank you for sharing.
 

FAQ: Black Hole Firewall: Exploring the Limits of Energy and Entropy

What is the black hole firewall question?

The black hole firewall question is a paradox in theoretical physics that arises from the combination of quantum mechanics and general relativity. It questions the existence of an event horizon, the point of no return for objects entering a black hole, and suggests that there may be a "firewall" of high-energy particles at the event horizon that would destroy anything entering it.

Why is the black hole firewall question important?

The black hole firewall question is important because it challenges our understanding of the fundamental principles of physics and forces us to reconsider the nature of space, time, and gravity. It also has implications for the information paradox, which questions whether information can be lost in a black hole.

Has the black hole firewall question been resolved?

No, the black hole firewall question is still a topic of ongoing research and debate among physicists. Many proposed solutions have been put forward, but there is currently no consensus on which, if any, is correct.

What are some proposed solutions to the black hole firewall question?

Some proposed solutions include the "complementarity" principle, which suggests that different observers may experience different phenomena at the event horizon, and the "entanglement" principle, which proposes that quantum entanglement between particles inside and outside the black hole may resolve the paradox.

How does the black hole firewall question impact our understanding of the universe?

The black hole firewall question challenges some of our most fundamental assumptions about the nature of space, time, and gravity. Resolving this question could lead to a deeper understanding of the universe and potentially even new theories of physics that could revolutionize our understanding of the cosmos.

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