Quantum mechanics and relativity

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SUMMARY

General relativity (GR) and quantum mechanics (QM) cannot both be complete within a unified theory due to their conflicting principles, particularly in extreme conditions such as black holes and the big bang. Quantum entanglement does not imply faster-than-light communication, as it does not involve any physical travel of information. The challenge lies in integrating gravity into quantum field theory, which remains unresolved. Both GR and QM are effective in their respective domains, but a unified theory must reconcile their differences and extend beyond their current limitations.

PREREQUISITES
  • Understanding of General Relativity (GR)
  • Familiarity with Quantum Mechanics (QM)
  • Knowledge of Quantum Field Theory
  • Concept of Quantum Entanglement
NEXT STEPS
  • Research the implications of Quantum Field Theory on gravity
  • Explore current theories attempting to unify GR and QM, such as String Theory
  • Study the phenomena of black holes and their relationship with quantum mechanics
  • Investigate the limitations of current models in high-energy physics
USEFUL FOR

Physicists, researchers in theoretical physics, and students studying advanced concepts in quantum mechanics and general relativity.

johann1301
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After what i have heard, General relativity and quantum mechanics can't both be correct if there is a unified theory.

Is this because quantum entanglement propose that "something" is traveling faster than light or is it something else?
 
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johann1301 said:
After what i have heard, General relativity and quantum mechanics can't both be correct if there is a unified theory.

Is this because quantum entanglement propose that "something" is traveling faster than light or is it something else?

It has nothing to do with that. Quantum entanglement does not break the speed of light because nothing is traveling! In fact, there have been several threads discussing why you cannot use this phenomenon to send faster than light signals.

The problem arises in the difficulty we have so far to incorporate gravity into something that resembles our description of quantum field theory.

Zz.
 
Thanks:)
 
johann1301 said:
After what i have heard, General relativity and quantum mechanics can't both be correct if there is a unified theory.

It might be better to say "complete" rather than "correct". Both QM and GR have proven quite capable of delivering correct results everywhere that they're applicable. A unified theory will have to agree with them everywhere that they're applicable, but will also (we hope) deliver results in areas where neither GM nor QM do so today.
 
The main difficulty is that where QM and GR both apply (at big bang or inside black hole) they won't work together.
 

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