Hawking Radiation Explained: How Particles Escape from Black Holes

In summary, the conversation discusses the concept of Hawking radiation and how it is possible for either a particle or anti-particle to escape from a black hole, leading to its evaporation. The particle-anti-particle picture is just one way to understand this complex idea, and the actual process involves analyzing quantum field theory in the curved space-time of general relativity. Further resources, such as websites and PDF documents, are mentioned for those interested in learning more about the relativistic or non-relativistic formulas for Hawking radiation. Overall, the details of Hawking radiation are still not fully understood and can only be accurately described through mathematical analysis.
  • #1
ghost313
29
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?
 
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  • #2
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.
 
  • #3
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.
 
  • #4
  • #5
Thank you.
 
  • #6
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.
 

1. What is Hawking Radiation?

Hawking Radiation is a phenomenon predicted by physicist Stephen Hawking in which particles are emitted from a black hole due to quantum effects near the event horizon.

2. How does Hawking Radiation work?

Hawking Radiation is produced when a pair of virtual particles, one with negative energy and one with positive energy, are created near the event horizon of a black hole. The negative energy particle falls into the black hole while the positive energy particle escapes, resulting in a net loss of mass for the black hole.

3. Can Hawking Radiation be detected?

Currently, Hawking Radiation is too weak to be detected directly due to its low frequency and the extreme distance of black holes. However, scientists are working on developing new technologies and techniques to potentially detect Hawking Radiation in the future.

4. How does Hawking Radiation affect the lifespan of a black hole?

Hawking Radiation causes a black hole to lose mass, which in turn decreases its gravitational pull. As a result, a black hole that is emitting Hawking Radiation will eventually shrink and evaporate over time until it disappears completely.

5. What are the implications of Hawking Radiation for our understanding of black holes?

Hawking Radiation provides a potential solution to the long-standing problem of black holes violating the laws of thermodynamics. It also suggests that black holes are not truly black and do emit radiation, which could have implications for our understanding of the universe and its energy balance.

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