Contrast quantum mechanics with general relativity

In summary, the conversation discusses a partial list of concepts that relate quantum mechanics and general relativity, such as quantum and black hole, discreteness and singularity, and uncertainty and cosmic censorship. Other pairings include wavefunction collapse and gravitational collapse, probability and geometry, and interference and dimensionality. The conversation also questions whether these correlating concepts can help understand quantum gravity and if a unified theory is possible without them. The speaker expresses skepticism about the usefulness of these juxtapositions and suggests that a deeper understanding of the concepts is necessary.
  • #1
Loren Booda
3,125
4
Here is a partial list of concepts, correlating quantum mechanics and general relativity, that you may wish to supplement or modify:

1. quantum <--> black hole
2. discreteness <--> singularity
3. phase space <--> spacetime
4. uncertainty <--> cosmic censorship
5. wavefunction collapse <--> gravitational collapse
6. probability <--> geometry
7. interference <--> dimensionality
8. action <--> interval
9. microverse <--> macroverse
10. least action <--> maximal separation
11. wavefunction <--> metric tensor
12. subjectivity <--> objectivity
13. complementarity <--> correspondence
14. duality <--> simultaneity
 
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  • #2
Do the above juxtapositions help to understand quantum gravity?

If not, how might this set of correlates be used?

Is a unified theory possible without such underlying dualities?
 
  • #3
Have you at least any idea what you are talking about? I can not even begin with listing what's wrong with that...

I appreciate that you want to help bringing forth a greater understanding of QM/GR, but a bunch of juxtapositions is not going to help. This is physics, not poetry.

The impression I get is that you want to put together a bunch of words without even grasping fully what they mean. Do you even know what a duality is?
 

What is the difference between quantum mechanics and general relativity?

Quantum mechanics is a theory that describes the behavior of particles at the subatomic level, while general relativity is a theory that describes the behavior of large objects in space and time.

How do quantum mechanics and general relativity relate to each other?

Quantum mechanics and general relativity are both fundamental theories in physics, but they have not yet been unified into a single theory. They both successfully describe different aspects of the universe, but they are incompatible at certain scales.

What are the main principles of quantum mechanics and general relativity?

The main principles of quantum mechanics are superposition, wave-particle duality, and uncertainty. The main principles of general relativity are the equivalence principle, the curvature of spacetime, and the principle of covariance.

What are the implications of the incompatibility between quantum mechanics and general relativity?

The incompatibility between quantum mechanics and general relativity means that there is currently no complete theory of quantum gravity, which would unify these two theories. This is one of the biggest challenges in modern physics.

Is there any evidence that supports the validity of both quantum mechanics and general relativity?

Yes, both quantum mechanics and general relativity have been extensively tested and have been shown to accurately describe different aspects of the universe. However, they have not yet been tested together in the same scenario.

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