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Posted on 09/04/2024 7:34:34 AM PDT by SunkenCiv
A recent study underscores the dynamic nature of black holes and extends similar thermodynamic characteristics to Extremely Compact Objects, advancing our comprehension of their behavior in quantum gravity scenarios.
A paper titled "Universality of the thermodynamics of a quantum-mechanically radiating black hole departing from thermality," published in Physics Letters B highlights the importance of considering black holes as dynamical systems, where variations in their geometry during radiation emissions are critical to accurately describing their thermodynamic behavior.
The study also suggests that extremely compact objects (ECOs) share these thermodynamic properties with black holes, regardless of their event horizon status. The significance of this research lies in its contribution to the ongoing efforts to resolve the black hole information paradox, providing a more nuanced understanding of black hole thermodynamics in quantum gravity contexts...
One of the most important problems in contemporary theoretical physics is understanding what a black hole (BH) is. It is believed that classical general relativity implies that a BH is an object with a horizon, i.e. a limit surface beyond which no event can influence an external observer, and a singularity in its core, i.e. a point at which the presence of infinite implies that the laws of physics fail.
On the other hand, recent approaches, both classical and quantum, have shown that what we call BH could be an object without both horizons and singularities. Objects of this type are also called Extremely Compact Object (ECO), to distinguish them from the "traditional" concept of BH.
(Excerpt) Read more at scitechdaily.com ...
Bkmk
Tohu wa-bohu
(”waste and void,” “formless and empty,” or “chaos and desolation”) Biblical Hebrew phrase in Genesis 1:2 describing the condition of the earth before God said, “Let there be light” (Gen. 1:3)
Sorry but there are some things that can only be the subject of speculation and conjecture. They can never be visited or directly oberved or definitively analyzed to determine their true nature. Black holes are of that type.
I’m amazed the scientific community hasn’t been hit yet with a racial discrimination lawsuit for adopting the term “Black Hole” to describe an astrophysical anomaly.
It’s just a really dense object. It’s not magic. Scientists should have named it RDO (really dense object) instead of black hole. Then, perhaps, people wouldn’t imagine it’s a magic place.
I wonder if scientist will ever admit that ‘Global Warming’ isn’t what they ‘thought it was’???
Except most of those harping about Global Warming aren’t actually ‘scientist’, and the only actual science involved is the mathematics needed to calculate how much tax revenue they can raise in ‘carbon credits’, and how much of it they can steal before everybody figures out that Global Warming is nothing more than pseudoscience bunk.
Ya know what? That’s exactly what I’ve been preaching for years!
There are conceptual “white holes”...starting to think that physics may be close to the asymptote of knowledge. Thank you Planck and Heisenberg.
Thanks for posting these. It is a good break from politics
Your welcome.
Many fields have topics that are solid and other topics that are speculative. The ratio of the speculative to the solid may vary by field, but you can probably find something speculative in all fields.
I think cosmology and evolution are both speculative. Macro-economics is more speculative than micro-economics. Political science? I don’t know but will speculate that it is all speculative. Perhaps a lot is known about nutrition, however it seems obvious that a lot is also speculative. Environmentalism? Well, yes clean water is good and smog is bad. However, once you get past the basics, much of it is speculative at best. Anything with a taint of Marxism is just flat-out wrong.
I was just saying the same thing last night, after several drinks.
By a weird coincidence, Calcutta is in India.
Very little of theoretical physics can be experimentally proven. It is philosophy at its best.
True of pretty much anything.
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