What is the difference between the Copenhagen Interpretation and Quantum Theory?

In summary: He did not take this to be a description of a physical system.In summary, the Copenhagen Interpretation is a philosophical interpretation of quantum mechanics that focuses on the idea that there is nothing apart from human understanding. It is not the only interpretation and there is no unified version, with differences between Bohr and Heisenberg's interpretations. Many physicists today practice the "shut up and calculate" approach, not because of the Copenhagen Interpretation, but because they do not see interpretations of quantum mechanics as relevant to their work. The Stanford Encyclopedia of Philosophy provides a more detailed explanation of the Copenhagen Interpretation, noting that its focus on the reduction of the wave function is not in line with Niels Bohr's original ideas.
  • #1
rodsika
279
2
They say Copenhagen Interpretation is not Shut Up and Calculate. So what really is Copenhagen Interpretation. What is its belief and statements? And how many percentage of physicists just focus on Quantum Theory and not care about interpretations and how many of them are into Copenhagen?
 
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  • #2
as i realized(not so sure)most of the quantum physicists nowadays just "shut up and calculate" but most of those who do this,do it just because they don't care about interpretations of quantum mechanics not because of copenhagen.they leave it as a philosophical question
 
  • #3
what do you mean by "interpretation of qm"?
 
  • #4
copenhagen interpretation says that there is nothing apart from humans' understanding so,e.g. according to uncertainty,a quantum particle doesn't posses position and momentum at the same time
 
  • #5
look at the page with the same name on wikipedia
 
  • #6
Shyan said:
look at the page with the same name on wikipedia

A better exposition is given at the Stanford Encyclopedia of Philosophy's webpage: Copenhagen Interpretation.
[EDIT:]
It makes note of the fact that there really is not a unified Copenhagen interpretation. Rather one should distinguish Bohr Interp. and Heisenberg Interp.


One key excerpt:
...many physicists and philosophers see the reduction of the wave function as an important part of the Copenhagen interpretation. But Bohr never talked about the collapse of the wave packet. Nor did it make sense for him to do so because this would mean that one must understand the wave function as referring to something physically real. Bohr spoke of the mathematical formalism of quantum mechanics, including the state vector or the wave function, as a symbolic representation.
 
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1. What is Quantum Theory?

Quantum Theory is a scientific theory that explains the behavior and interactions of subatomic particles such as electrons, protons, and photons. It is the foundation of modern physics and has been proven to accurately describe the behavior of particles on a microscopic scale.

2. What is the Copenhagen interpretation of Quantum Theory?

The Copenhagen interpretation, also known as the Copenhagen view, is one of the earliest and most widely accepted interpretations of Quantum Theory. It was developed in the 1920s by Niels Bohr and his colleagues in Copenhagen, Denmark. It states that the act of observation or measurement affects the behavior of particles and that it is impossible to know the exact state of a particle until it is measured.

3. How does the Copenhagen interpretation differ from other interpretations of Quantum Theory?

The Copenhagen interpretation differs from other interpretations in that it emphasizes the role of the observer and the idea of wave-particle duality. It also proposes the concept of superposition, where particles can exist in multiple states at the same time until they are observed and collapse into a single state.

4. Can the Copenhagen interpretation be proven?

No, the Copenhagen interpretation, like other interpretations of Quantum Theory, cannot be proven as it is a philosophical interpretation of the mathematical equations that describe the behavior of particles. However, it has been widely accepted and has been successful in predicting the behavior of particles in experiments.

5. Are there any criticisms of the Copenhagen interpretation?

Yes, there are several criticisms of the Copenhagen interpretation, including the idea that it relies too heavily on the role of the observer and that it does not provide a complete understanding of the behavior of particles. Other interpretations, such as the Many-Worlds interpretation, have been proposed to address these criticisms.

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