Is this why relativity and quantum physics don't mix?

In summary, the problem with unifying relativity and quantum theory is that the equations give infinite answers at the quantum scale, which is a problem because it contradicts what Schrodinger said about mutations being caused by a quantum jump.
  • #1
least_action
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In one of Feynmans messenger lectures he proved that relativity implies local conservation of energy using the lagrangian (energy can't jump from one place to another). In the atom of quantum theory the electron jumps around in various discrete orbits. This seems like a contradiction.

Is this 'the' problem with unifying relativity and quantum theory? What other problems are there?
 
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  • #2
I think it has something to do with "renormalization" which is used in Quantum Mechanics to make answers reasonable (basically), but when you try to "renormalize" a gravity meadiator (such as a Graviton) the equations fail.

Also in places at the quantum scale, but with huge gravity (like in a black hole) the equations also give infinate answers and stupid results.
 
  • #3
No, all quantum therories are "relativistic" which means the same kind of Ponciare symmetry is designed in from the beginning.
 
  • #4
least_action said:
In the atom of quantum theory the electron jumps around in various discrete orbits.

No, it doesn't. There no electron "orbits" in the classical sense. Instead, there are probability distributions which have different shapes for each energy state, but which overlap each other significantly. See for example

http://www.phy.davidson.edu/stuhome/cabell_f/density.html
 
  • #5
jtbell said:
No, it doesn't. There no electron "orbits" in the classical sense. Instead, there are probability distributions which have different shapes for each energy state, but which overlap each other significantly. See for example

http://www.phy.davidson.edu/stuhome/cabell_f/density.html

Oh okay so there are not orbits but energy levels, Schrodinger said:

"... It reminds a physicist of quantum theory - no intermediate energies occurring between two neighbouring energy levels. ... The mutations are actually caused by a quantum jump in the gene molecule."

and it is this idea of a jump between energy levels which I think contradicts the theorem Feynman wrote about the Lagrangian.
 

FAQ: Is this why relativity and quantum physics don't mix?

What is the main difference between relativity and quantum physics?

The main difference between relativity and quantum physics is that relativity is a theory that describes the behavior of large objects and their motion, while quantum physics is a theory that describes the behavior of particles at the subatomic level.

Why can't relativity and quantum physics be unified?

Relativity and quantum physics cannot be unified because they use different mathematical frameworks and make different assumptions about the physical world. Additionally, they have been tested and proven to accurately describe different aspects of the universe, so it is difficult to find a single theory that can explain both.

Is it possible for future scientific advancements to unify relativity and quantum physics?

While it is not currently possible to unify relativity and quantum physics, it is possible that future scientific advancements may lead to a better understanding of the fundamental laws of the universe and potentially unify these two theories. However, it is also possible that some aspects of these theories may remain separate.

Are there any theories that attempt to unify relativity and quantum physics?

Yes, there are several theories that attempt to unify relativity and quantum physics, such as string theory, loop quantum gravity, and quantum field theory. However, these theories are still in the early stages of development and have not been fully tested or proven.

How does the lack of a unified theory impact our understanding of the universe?

The lack of a unified theory does not impact our current understanding of the universe, as both relativity and quantum physics have been extensively tested and proven to accurately describe different aspects of the universe. However, a unified theory could potentially provide a more complete and comprehensive understanding of the fundamental laws of the universe.

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