I Black holes -- Can you chill the particles of a black hole?

[caybrax]

TL;DR Summary

I have a strange question on my mind

I want to ask if you can theoretically chill the particles of a black hole and if it is possible to achieve it what will happen

 

[PeroK]

Summary:: I have a strange question on my mind

I want to ask if you can theoretically chill the particles of a black hole and if it is possible to achieve it what will happen

A black hole is a vacuum. It has no particles.

 

[caybrax]

i feel strange

 

[PeterDonis]

Moderator's note: Thread level changed to "I".

 

[berkeman]

i feel strange

Are you a quark?

https://en.wikipedia.org/wiki/Strange_quark

 

[lomidrevo]

Are you a quark?

He is "A PF Quark", as every newbie in this forum!

 

[Demystifier]

He is "A PF Quark", as every newbie in this forum!

Better to be a quark than a quack.

 

[atyy]

You can chill the particles (Hawking radiation) emitted by a quantum black hole, since after they are emitted, they are no longer in the black hole. However, you do not have any direct control of the temperature of particles emitted by a black hole. The temperature of particles emitted by a black hole is given by the Bekenstein-Hawking formulas (see Eq 1.1 in https://arxiv.org/abs/1410.1486).

The bigger a black hole is, the lower the temperature of its Hawking radiation.
https://phys.org/news/2016-09-cold-black-holes.html

So indirectly, you can lower the temperature of a black hole by making it bigger. You can make a black hole bigger by throwing stuff into it.

A classical black hole has no temperature (or can be said to be at absolute zero), and no Hawking radiation.