A Black hole thermodynamics and accelerated expansion

[djymndl07]

I have been thinking this for quite a few time. At this point we know that our universe is going through an accelerated expansion phase. I was also doing some work on blackhole thermodynamics, specially P-V criticality, heat capacity, Joule Thomson expansion, heat engine etc. These characteristics can explain stability, phase transition and microstructure of BH.

Now apart from the increasing area and entropy, is there any connection with BH thermodynamics and accelerated expansion of the universe.

In other words, I want to know if the accelerated expansion or the evolution of the universe can be explained through the thermodynamic behavior such as heat capacity, free energy, J-T expansion, criticality etc or not or is there any connection to these thermodynamic quantities with the observational cosmology?

 

[Bandersnatch]

There was a paper a couple-ish years back attempting to link black hole mass with the dark energy content. Not really straight-up about thermodynamics of the thing, but maybe you'll find it useful nonetheless:
https://arxiv.org/abs/2302.07878
We had a short discussion about it on this forum back when it came out.

 

[berkeman]

We had a short discussion about it on this forum back when it came out.

https://www.physicsforums.com/threa...-astrophysical-source-of-dark-energy.1050066/