Hawking Radiation Explained: How Particles Escape from Black Holes

Click For Summary

Discussion Overview

The discussion revolves around the concept of Hawking radiation, particularly focusing on the mechanisms by which particles escape from black holes and the implications of quantum fluctuations in this context. Participants explore theoretical interpretations, mathematical formulations, and the complexities involved in understanding this phenomenon.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant questions how anti-particles can end up in a black hole while the other particle escapes, raising concerns about the forces at play and the nature of potential energy in such scenarios.
  • Another participant suggests that the particle anti-particle picture is a conceptual simplification, noting that real anti-particles have positive mass and that the process involves complex interactions within the framework of quantum field theory in curved spacetime.
  • A request for resources related to relativistic or non-relativistic formulas for Hawking radiation and references to relevant papers is made by a participant.
  • It is mentioned that either the particle or anti-particle can escape, contributing to the evaporation of the black hole, but the specifics of this process remain unclear.
  • A later reply emphasizes that the "particle pair" description is merely an analogy, as stated by Hawking, and that the true nature of the process is better captured by mathematical formulations rather than a simplistic particle pair event.

Areas of Agreement / Disagreement

Participants express differing views on the interpretation of Hawking radiation, with some emphasizing the limitations of the particle pair analogy while others focus on the mechanics of particle escape. The discussion remains unresolved regarding the precise nature of the processes involved.

Contextual Notes

There are limitations in the discussion regarding the assumptions made about particle interactions, the definitions of mass in this context, and the mathematical complexities that are not fully explored.

ghost313
Messages
29
Reaction score
0
So we are at a distance from the black hole R>2GM/c^2 where quantum fluctuations happen all the time.
How is it possible that every time the anti-particle ends up in the black hole(the one that will decrease her mass) and eaven if it's so,how can the other particle escape?if they are at a really small distance with a huge potential energy,why doesent the anti-particle just attract with herslelf her partner with the Coulomb force?
 
Physics news on Phys.org
The particle anti-particle picture for Hawking radiation is just one way to conceptualize this complex idea. It has its faults, because actually the particle that falls into the black hole must reduce the black hole mass, where real anti-particles have positive mass not negative mass.

Actually the result of Hawking radiation is a semi-classical result from analyzing quantum field theory in the curved space time Schwarzschild solution of general relativity. The details are actually pretty complicated.
 
Who knows what's actually happening.
Do you know any site with relativistic or non-relativistic formulas for the Hawking Radiation?
Or a PDF document of his paper?
Thank you for answearing.
 
Thank you.
 
ghost313, Hawking himself has said that the "particle pair" description of Hawking radiation is an analogy and is as close as he could come to an English language description of what is actually going on, which can only be described accurately by the math and is NOT really a particle pair event.
 

Similar threads

Replies
7
Views
2K
  • · Replies 11 ·
Replies
11
Views
3K
  • · Replies 0 ·
Replies
0
Views
2K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 8 ·
Replies
8
Views
2K
  • · Replies 17 ·
Replies
17
Views
3K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 15 ·
Replies
15
Views
4K
  • · Replies 4 ·
Replies
4
Views
2K