Will QG leave GR unchanged or QT?

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SUMMARY

The discussion centers on the concept of quantum gravity (QG) and its relationship with general relativity (GR). Participants argue that while QG aims to find a quantum theory that approximates classical GR, it does not necessarily modify GR itself. The conversation highlights various approaches to QG, including loop quantum gravity (LQG) and string theory, which maintain the principles of quantum theory while addressing the limitations of GR, such as singularities and energy conservation issues. Notably, the Penrose interpretation is mentioned as a unique approach that integrates classical GR solutions with quantum mechanics through objective collapse theory.

PREREQUISITES
  • Understanding of general relativity (GR) principles
  • Familiarity with quantum theory (QT) fundamentals
  • Knowledge of loop quantum gravity (LQG) and string theory
  • Awareness of the Penrose interpretation of quantum mechanics
NEXT STEPS
  • Research the implications of the Penrose interpretation on quantum gravity
  • Explore the principles of loop quantum gravity (LQG) and its approach to spacetime
  • Investigate string theory and its role in unifying quantum mechanics and general relativity
  • Study effective field theory in the context of quantum gravity, referencing Donoghue's work
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Physicists, researchers in theoretical physics, and students interested in the intersection of quantum mechanics and general relativity, particularly those exploring the foundations of quantum gravity theories.

  • #61
martinbn said:
This is the probably what will happen, but are there any attemts at addapting QM to GR?
I don't know. I tried, and you can read about my attempts on my blog. But I can't say I succeeded.
 

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