Quantum fluctations and singularities.

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SUMMARY

The discussion centers on the relationship between quantum fluctuations and singularities in the context of M-theory and string theory. Participants argue that M-theory establishes a minimum size limit, specifically the Planck length, which may render quantum fluctuations negligible at scales larger than this limit. This reasoning is extended to black hole singularities, suggesting that string theory's framework could eliminate the need for singularities by addressing the limitations of General Relativity at sub-Planck scales. The connection between these concepts remains a topic of inquiry among participants.

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  • Understanding of M-theory and its implications in theoretical physics
  • Knowledge of string theory and its fundamental principles
  • Familiarity with quantum mechanics, particularly at the Planck scale
  • Basic grasp of General Relativity and its limitations regarding singularities
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  • Research the implications of Planck length in M-theory
  • Explore the role of quantum fluctuations in string theory
  • Investigate how string theory addresses singularities in black holes
  • Learn about the interplay between General Relativity and quantum mechanics
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The discussion is beneficial for theoretical physicists, cosmologists, and students of advanced physics who are exploring the intersections of quantum mechanics, string theory, and general relativity.

martinrandau
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Can one say that it is the same factors (whatever they may be, I don't know) in M-theory/String theory that puts away the effects of quantum fluctations, and also puts away the need/possibility of a singularity in a black hole?

I see a connection since M-theory sets a limit of size (planck- length?), and thus the small but non negliable effects of quantum mechanics on a small scale can be ignored, since string theory sets a smallest limit which is bigger than the level at which quantum fluctations occur.

The same reasoning goes for black hole singularities, though I can't explain that with the details used above.

How are these two factors/effects of string theory connected (do they even exist?).

//Martin
 
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Originally posted by Ambitwistor
What? Quantum effects are very important on the Planck scale. (And why should we "ignore" a "non-negligible" effect? Isn't that an oxymoron?)

What I meant was that, as string theory sets a smallest level, the fluctations, etc. that hinders General Relativity from working at a sub- Planck level no longer exists. Do you know what I mean?
 

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