All Questions
13
questions
3
votes
1
answer
96
views
Different Bekenstein bound equations – what’s the difference?
Can someone help me understand the difference between the Beckenstein bound equations that I’ve come across? They all appear to have different dimensions.
I’ve been told that if you include the ...
- 33
0
votes
1
answer
150
views
Why is Black Hole Information paradox so important to physicists?
It's a very general question. Black hole paradox is an interesting problem but why is it something that physicists are so worried about? As neither can it be directly experimentally tested nor do I ...
- 317
4
votes
1
answer
261
views
Why Black Hole is maximally chaotic?
I understand intuitively that black holes are chaotic. However, people say black holes are not just chaotic, they are "maximally chaotic". What is the quantitative definition of "...
- 43
1
vote
1
answer
133
views
What is the fundamental reason why information is on the event horizon of a black hole?
I don't know the mathematics behind black holes and information theory but is there a simple explanation of why information is on the event horizon. Why can't it be elsewhere?
user355436
3
votes
1
answer
58
views
A variation of a Bekenstein's thought experiment
Consider a glass of water with mass $m$ and temperature $T_w$ released very close to the black hole horizon. The black hole being at temperature $T_{b} = \frac{1}{8\pi G M}$. Now, the final state is a ...
- 1,200
4
votes
2
answers
166
views
What's the big deal with information being lost in a black hole?
In the video here: https://www.youtube.com/watch?v=d_XuFkVdAYU (10:57), it is said that the loss of information when matter falls into a black hole is a paradox. He gives an example of throwing a ...
- 885
0
votes
1
answer
108
views
Black hole information paradox: Proper time
The Black hole (BH) information paradox describes the apparent paradox of information being permanently lost in a BH, contradictory to QM.
What I am asking myself is: According to General Relativity (...
- 447
6
votes
1
answer
513
views
Introductory References for the Black Hole Information Paradox
I am looking for introductory references for the Black Hole Information Paradox and trying to compile a sequential list through which someone familiar with the basics of QFT and GR can go to ...
0
votes
0
answers
77
views
Bekenstein Bound / Holographic Principle at Extremely Low Temperatures
I'm curious about a possible connection between the Berkenstein Bound and the physical nature of information, specifically in reference to the fact that the amount of information that can be written ...
- 187
11
votes
1
answer
544
views
What are good books covering information theoretic approaches to theoretical physics?
I am about to finish my undergraduate studies and am very interested in going into the applications of information theory to either general relativity, or quantum mechanics.
However I have been ...
1
vote
1
answer
184
views
Smallest possible black hole containing any information?
My apologies for the meandering nature of this question. Using some back-of-the-envelope numbers:
Planck length ≈ $10^{-35}$ m
Planck area ≈ $10^{-70}$ m
Radius of a black hole with a surface area ...
- 121
0
votes
0
answers
133
views
Can black holes with the same mass evaporate with different speeds?
I am curious about the following observations:
(1) For a normal Schwarzschild black hole, it evaporates according to $dm/dt=-1/m^2$;
(2) We have eternal black holes which do not evaporate (though ...
- 1,548
2
votes
2
answers
460
views
Maximum Density that We Can Store Information at?
I was informed that:
There is a maximum density at which we can store information. For a sphere with surface area A, the maximum information that can be contained
within is equivalent to the ...
