Beyond the Black Hole Singularity

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Discussion Overview

The discussion centers around the implications of loop quantum gravity in understanding the physics near black hole singularities. Participants explore the theoretical framework and its potential to provide insights into phenomena where general relativity may not apply effectively.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants highlight loop quantum gravity as a leading candidate for analyzing extreme cosmological phenomena, particularly in the context of black holes.
  • One participant inquires about measurable effects that may arise from the application of loop quantum gravity to black holes.
  • Several participants express interest in accessing academic papers referenced in a related article, specifically looking for availability outside of paywalls.
  • One participant shares a link to an arXiv paper by Ashtekar et al. but notes difficulty in finding a paper by Rovelli.
  • Another participant mentions finding Rovelli's commentary but is uncertain about its accessibility due to potential paywall issues.

Areas of Agreement / Disagreement

Participants generally agree on the relevance of loop quantum gravity to the discussion of black holes, but there is no consensus on the specific measurable effects or the accessibility of referenced papers.

Contextual Notes

Participants express uncertainty regarding the availability of certain academic papers and the implications of loop quantum gravity, indicating a need for further exploration and clarification.

Who May Find This Useful

Readers interested in theoretical physics, particularly those focused on quantum gravity, black hole physics, and access to scientific literature.

Kanishka Toshniwal
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Our first glimpses into the physics that exist near the center of a black hole are being made possible using "loop quantum gravity"—a theory that uses quantum mechanics to extend gravitational physics beyond Einstein's theory of general relativity. Loop quantum gravity, originated at Penn State and subsequently developed by a large number of scientists worldwide, is opening up a new paradigm in modern physics. The theory has emerged as a leading candidate to analyze extreme cosmological and astrophysical phenomena in parts of the universe, like black holes, where the equations of general relativity cease to be useful.
from - https://phys.org/news/2018-12-black-hole-singularity.html
 
Physics news on Phys.org
Could you please let me know which measureable effects follow from this?
Thanks in advance.
 
Are the papers referenced in this phys.org article available outside a paywall? Even arXiv preprints would be helpful.
 
Nugatory said:
Are the papers referenced in this phys.org article available outside a paywall? Even arXiv preprints would be helpful.

I found the Ashtekar et al paper on arxiv here:

https://arxiv.org/abs/1806.00648

I have not been able to find the Rovelli paper.
 
Nugatory said:
Are the papers referenced in this phys.org article available outside a paywall?

PeterDonis said:
I have not been able to find the Rovelli paper.

Rovelli's commentary is at

https://physics.aps.org/articles/v11/127

I can see it, but it might be behind a paywall, as I am in my office.
 
George Jones said:
I can see it, but it might be behind a paywall, as I am in my office.
Works on my personal standard issue mobile.
 

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