All Questions
5
questions
9
votes
4
answers
3k
views
Is it possible to have a stable black hole that does not evaporate?
Black holes would presumably evaporate in the long future via Hawking radiation.
However is this inevitable? Or are there any mechanisms that would compensate the lost mass due to Hawking radiation ...
- 2,462
1
vote
0
answers
72
views
Hawking temperature, uncertainty principle and size of a black hole
I was playing with the Hawking temperature formula
$$T_H = \frac{\hbar\ c^3}{8 \pi\ G\ M\ k_B}$$
and I thought it would be interesting to associate a velocity to this temperature:
$$k_B\ T_H = \frac{1}...
- 1,431
0
votes
0
answers
92
views
Does a black hole cool off and obey laws of thermal equilibium?
I have read these questions:
Kirchhoff law of thermal radiation
Why do dark objects radiate thermal electromagnetic energy faster than light objects?
And it made me curious.
Nothing gets out of a ...
- 29k
0
votes
1
answer
817
views
Universe spawned from the death of a hyper black hole?
Some Cosmologists have speculated that the Universe formed from the debris ejected when a four-dimensional star collapsed into a black hole a scenario that would help to explain why the cosmos seems ...
- 253
20
votes
4
answers
2k
views
Hawking radiation and reversibility
It's often said that, as long as the information that fell into a black hole comes out eventually in the Hawking radiation (by whatever means), pure states remain pure rather than evolving into mixed ...
- 2,472