How abou the hidden variable theory?

In summary, there is ongoing research on hidden variable theories, but no conclusive results have been found. 't Hooft has been working in this area, but no one has been able to accurately predict experimental outcomes like QED. There have been no new developments in the standard theory of quantum mechanics. While there are some who still believe in local hidden variable theories, they are not widely accepted. The only potential option is Bohmian Mechanics, which is a non-local theory.
  • #1
xylai
60
0
There are lots of works on the hidden variable.
How about the theory recently?
Thank you!
 
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  • #2
I know 't Hooft has done some work in this area during the last few years, but I don't think he (or anyone) is even close to finding a hidden variable theory that can predict the outcome of experiments as accurately as QED.
 
  • #3
No new additions to the standard theory (QM) itself. As to local hidden variable theories, which are forbidden from agreeing with QM per Bell's Theorem: There are a few diehards out there who cling to the idea of a stochastic theory which has local hidden variables. Their thinking is that the standard cos^2(theta) relationship observed in experiments is an illusion, that there are experimental problems which "bias" the results. At this time, there is no seriously considered options for local hidden variable theories. There is a non-local candidate, however: Bohmian Mechanics.
 

FAQ: How abou the hidden variable theory?

What is the hidden variable theory?

The hidden variable theory is a hypothesis in quantum mechanics that suggests there are underlying, unknown variables that determine the behavior of particles. These variables are not currently accounted for in our understanding of quantum mechanics, but could potentially explain some of the uncertainties and seemingly random behavior observed in quantum systems.

How does the hidden variable theory differ from other theories in quantum mechanics?

The hidden variable theory differs from other theories, such as the Copenhagen interpretation, by proposing the existence of underlying variables that determine the behavior of particles, rather than relying on probability and uncertainty. It also attempts to explain the non-locality observed in some quantum systems.

What evidence supports the hidden variable theory?

There is currently no direct evidence that supports the hidden variable theory. However, some physicists argue that it could potentially resolve some of the paradoxes and limitations of current quantum theories, and that further research and experimentation could provide evidence for its validity.

Why is the hidden variable theory controversial?

The hidden variable theory is controversial because it challenges the widely accepted understanding of quantum mechanics and suggests the existence of unknown variables that cannot be observed or measured. It also raises questions about the nature of reality and the role of human observation in determining the behavior of particles.

How does the hidden variable theory impact our understanding of the universe?

If the hidden variable theory were to be proven true, it would significantly impact our understanding of the universe and the fundamental laws of physics. It could potentially lead to a more deterministic view of the universe and change the way we approach quantum experiments and technologies. However, until there is concrete evidence supporting the theory, its impact on our understanding remains speculative.

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