Schwarzschild Metric & Particle Absorption

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Discussion Overview

The discussion revolves around the relationship between the Schwarzschild metric, a solution to Einstein's field equations in general relativity, and the absorption of particles, potentially linking concepts from general relativity and quantum field theory (QFT). Participants explore whether these two concepts are related and the prerequisites for understanding them.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants suggest that the Schwarzschild metric implies a different potential than Newtonian gravity and question if this relates to particle absorption.
  • One participant asks if the discussion pertains to particle collisions in curved spacetime.
  • Another participant expresses uncertainty about the relationship between the Schwarzschild metric and particle absorption, indicating a lack of knowledge in QFT and a focus on general relativity.
  • A participant notes that the concepts of falling into a gravitational object and particle absorption are not directly related, emphasizing that particle collisions are not modeled as gravitational processes.
  • One participant mentions Hawking Radiation as a vague connection between the two concepts, highlighting its complexity and the need for advanced knowledge in QFT in curved spacetime.
  • There is a suggestion that studying advanced quantum mechanics (QM) before QFT may be beneficial for understanding these topics.

Areas of Agreement / Disagreement

Participants express varying levels of understanding and knowledge about the topics discussed, with some uncertainty about the relationship between the Schwarzschild metric and particle absorption. There is no consensus on whether these concepts are directly related.

Contextual Notes

Participants reference the complexity of QFT and its relationship to general relativity, indicating that a solid foundation in advanced QM may be necessary before tackling QFT and its applications in curved spacetime.

accdd
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The Schwarzschild metric implies a potential different from that of Newtonian gravity. Is there a relationship between it and the process by which particles can be absorbed by other particles?
(I haven't studied QFT yet)
 
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accdd said:
The Schwarzschild metric implies a potential different from that of Newtonian gravity. Is there a relationship between it and the process by which particles can be absorbed by other particles?
(I haven't studied QFT yet)
Are you talking about particle collisions in curved spacetime?
 
I do not know.
I don't know anything about QFT and am currently studying general relativity.
 
accdd said:
I do not know.
I don't know anything about QFT and am currently studying general relativity.
If you don't know what question you're asking how can anyone answer it?
 
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Curiosity.
I am studying the Schwarzschild metric and I have read that if you get too close you fall into the object in question, I thought that this could be related to the fact that particles can be absorbed by other particles. Are these two concepts related? Should I study QFT first?
 
accdd said:
I am studying the Schwarzschild metric and I have read that if you get too close you fall into the object in question, I thought that this could be related to the fact that particles can be absorbed by other particles. Are these two concepts related?
Not really. One is the theory of gravity; the other is the quantum theory of particle collisions. Particle collisions are not modeled as a gravitational process!
accdd said:
Should I study QFT first?
QFT is more advanced than GR in my opinion.
 
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PeroK said:
If you don't know what question you're asking how can anyone answer it?
I went to see a psychic. She asked me "what seems to be the problem." I replied "you tell me!"
 
accdd said:
I am studying the Schwarzschild metric and I have read that if you get too close you fall into the object in question, I thought that this could be related to the fact that particles can be absorbed by other particles. Are these two concepts related?
No.
 
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accdd said:
I am studying the Schwarzschild metric
From which source? Textbook(s)? Formal Course? Pop-sci fluff?
accdd said:
and I have read that if you get too close you fall into the object in question, I thought that this could be related to the fact that particles can be absorbed by other particles. Are these two concepts related?
Since you mentioned "curiosity", I'll risk telling you that they're "related" only in a vague sense that in the vicinity of the Schwarzschild horizon there's a phenomenon called Hawking Radiation. This is an advanced topic, requiring knowledge of QFT in Curved Spacetime (which is far more difficult that ordinary QFT -- which is itself one of the most difficult areas of theoretical physics).

accdd said:
Should I study QFT first?
Yes, but try advanced QM first (see my signature line), then introductory QFT, then advanced QFT, then try QFT in curved spacetime. That should keep you gainfully occupied for many years. :oldwink:
 
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