What is the significance of particle-antiparticle radiation near black holes?

Click For Summary
SUMMARY

The discussion centers on the significance of particle-antiparticle radiation near black holes, specifically how virtual particles are influenced by the black hole's gravity. It explains that vacuum fluctuations can create particle-antiparticle pairs near the event horizon, where one particle falls into the black hole with negative energy while the other escapes. This process preserves total energy and leads to the perception of radiation emitted from the black hole. The conversation also explores the theoretical implications of viewing these interactions as a single particle moving through time.

PREREQUISITES
  • Understanding of black hole physics and event horizons
  • Familiarity with quantum mechanics and vacuum fluctuations
  • Knowledge of particle-antiparticle pairs and their properties
  • Concept of energy conservation in relativistic contexts
NEXT STEPS
  • Research the Hawking radiation theory and its implications for black holes
  • Explore the concept of virtual particles in quantum field theory
  • Study the effects of gravity on particle behavior near event horizons
  • Investigate the relationship between time perception and particle physics
USEFUL FOR

Physicists, astrophysicists, and students of theoretical physics interested in black hole dynamics and quantum mechanics.

mesinik
Messages
8
Reaction score
0
Hi, my name is Mart Vabar.

Wikipedia has this somewhat heavy construction:

Physical insight on the process may be gained by imagining that particle-antiparticle radiation is emitted from just beyond the event horizon. This radiation does not come directly from the black hole itself, but rather is a result of virtual particles being "boosted" by the black hole's gravitation into becoming real particles.
A slightly more precise, but still much simplified, view of the process is that vacuum fluctuations cause a particle-antiparticle pair to appear close to the event horizon of a black hole. One of the pair falls into the black hole whilst the other escapes. In order to preserve total energy, the particle that fell into the black hole must have had a negative energy (with respect to an observer far away from the black hole).


Here we have 3 different particles: 2 of these appear near the event horizon; the 3rd one is a part of the black hole and it disappears, when it meets the particle with negative energy.

Could it make sense to simplify it and to see all these 3 as one single paricle:

1)

once upon a time it fell into the black hole,

2)

but for some good reason it cannot fit a "possible place" there anymore.

3)

So, from a viewpoint of an outsider, it seemingly moves "back" in time and when doing so, it looks like an anti-particle (to have some fun with it: like outer planets sometimes move "back")...

4)

... and when seemingly "going back" in time, the particle moves also out of the black hole,

5)

where it looks like a normal radiation with positive energy.


Comments anybody?
 
Astronomy news on Phys.org


Are you asking a question or presenting a theory? The concept that the particle that escapes is the same as the particle trapped, but in a different "direction" in its wordline has been put forward, but nothing with 3 particles.
 

Similar threads

  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 5 ·
Replies
5
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 17 ·
Replies
17
Views
6K
  • · Replies 11 ·
Replies
11
Views
3K
  • · Replies 6 ·
Replies
6
Views
7K
  • · Replies 10 ·
Replies
10
Views
3K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 11 ·
Replies
11
Views
2K