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

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Discussion Overview

The discussion revolves around the differences between the Copenhagen Interpretation and Quantum Theory, exploring the beliefs and statements associated with the Copenhagen Interpretation, as well as the attitudes of physicists towards interpretations of quantum mechanics.

Discussion Character

  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants question what the Copenhagen Interpretation truly entails and its philosophical implications, suggesting it is not merely about calculations.
  • Others propose that many quantum physicists adopt a "shut up and calculate" approach, indicating a lack of interest in interpretations, which they attribute to philosophical indifference rather than specifically to the Copenhagen Interpretation.
  • A participant seeks clarification on what is meant by "interpretation of quantum mechanics."
  • One participant describes the Copenhagen Interpretation as asserting that a quantum particle does not possess definite position and momentum simultaneously, emphasizing the role of human understanding.
  • Several participants reference external sources, such as Wikipedia and the Stanford Encyclopedia of Philosophy, to highlight that there is no unified Copenhagen Interpretation and to differentiate between the interpretations of Bohr and Heisenberg.
  • A key point raised is that while many physicists view wave function reduction as part of the Copenhagen Interpretation, Bohr himself did not discuss wave function collapse, suggesting a different understanding of the wave function as a symbolic representation rather than a physically real entity.

Areas of Agreement / Disagreement

Participants express differing views on the nature of the Copenhagen Interpretation and its relevance to modern physics, indicating that multiple competing perspectives remain unresolved.

Contextual Notes

There are limitations in the discussion regarding the definitions of key terms and the assumptions underlying different interpretations, which are not fully explored or agreed upon.

rodsika
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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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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
 
what do you mean by "interpretation of qm"?
 
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
 
look at the page with the same name on wikipedia
 
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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