All Questions
Tagged with black-holes thermodynamics
306
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Which symmetry is broken during an AdS black hole phase transition and does it lead to chaos?
I was going through this paper in which the authors state that :
In Landau theory, a continuous phase transition is associated with a broken symmetry.
The phase transition in a black hole system can ...
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Question on apparent super efficiency of the magnetic penrose process
Accordingly to this paper $[1]$, the efficiency of the so called Magnetic Penrose Process (MPP) is, for supermassive black holes of mass $M∼10^{10} M_{\odot}$ immersed in a magnetic field having $B∼10^...
- 3,085
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What is a black hole microstate?
What is the most generally accepted way of defining what a black hole microstate is? On a related note, I don't believe there is a Wikipedia page on the topic.
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How to add Newton's constant to the metric function?
My main question is, is it possible to manually add Newton's constant $G$ to the metric function of a black hole? Is there such a possibility for Black Brane? How to add? Should it be added to the ...
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Black Hole Battery [duplicate]
What is the maximum charge/discharge efficiency of a spinning black hole when used as a battery via frame dragging effects?
Charging:
I'm pretty sure the best way to add to its angular momentum (in ...
- 347
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Is Hawking radiation possible for all massive objects (based on new research)? [duplicate]
So a few years ago, looking at the answer to this question the answer was no and that there needed to be an event horizon for hawking radiation to arise and that it is not purely curvature that causes ...
- 1,534
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What state structure is related to each interval $z$ in Hyperscaling violating black holes?
Hyperscaling violating black holes are defined by parameters such as $z$ and $θ$. My main question is: what kind of state structure corresponds to each value of $z$, or what does it signify and relate ...
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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
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Does the interior volume of a black hole grow forever?
Recently, I was reading about a article which tells about something known as "Susskind Complexity". The article states that the interior volume of a black hole grows forever.
How/why does ...
user355398
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Superposition of Page times - is the Hawking radiation maximally mixed?
Suppose we have a black hole of mass $M$ at time $t_0$. The black hole has already been radiating Hawking radiation for some time. If no further mass is added to the black hole, suppose over half of ...
- 2,337
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Ergodicity and spin connections at the event horizon
Hawking famously relates the entropy $S$ to the surface area of a black hole $A$ as $S=A/4$. Should I be thinking of the entropy as the number of possible configurations of a spin connection at the ...
- 241
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Hawking Temperature for a hairy BTZ Black Hole
The metric of a hairy Black Hole is given by:
$$ds^2 = \frac{L^2}{z^2}\biggl(-g(z) dt^2 + \frac{e^{2 A(z)}}{g(z)} dz^2 +d\varphi^2\biggr), $$
where $L$ is the AdS length taken to be $1$,$A(z)$ is the ...
- 193
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How quasinormal modes of black holes related to black hole temperature?
I have heard that quasinormal modes of black holes are related to black hole temperature. QNMs describe how a black hole reacts to perturbation. Forex, when a black hole is perturbed, it will emit ...
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Why is the temperature of a black hole inversely related to its mass?
From what I've read
The temperature of a black hole is measured by the amount of Hawking Radiation emitted.
For a photon to escape, it must travel perfectly perpendicular to the event horizon.
The ...
- 339
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Interior Hawking radiation
The Hawking effect is induced by the causal horizon of a black hole, which separates the interior and exterior modes such that asymptotic observers at infinity see thermal radiation flux. What can we ...
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