Quantum Cosmology and Quantum Computing

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Discussion Overview

The discussion revolves around the interpretation of Everett's theory in the context of Quantum Cosmology and Quantum Computing, particularly addressing whether it lacks alternatives as suggested by Deutsch and Lockwood in their 1994 article. The scope includes theoretical interpretations and the implications for quantum mechanics.

Discussion Character

  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants note that Everett's interpretation is controversial but argue that there are many alternative interpretations of quantum mechanics.
  • One participant emphasizes that no experiments currently exist that can distinguish between these interpretations, suggesting that belief in any interpretation is subjective.
  • Another participant questions the claim that Everett has no alternatives in Quantum Cosmology and Quantum Computing, seeking clarification on this point.
  • A later reply asserts that the claim about the lack of alternatives is not true, indicating a disagreement with the original assertion made by Deutsch and Lockwood.

Areas of Agreement / Disagreement

Participants express disagreement regarding the status of Everett's interpretation and its alternatives in Quantum Cosmology and Quantum Computing. There is no consensus on whether Everett's interpretation is indeed prevailing or if it lacks alternatives.

Contextual Notes

Participants acknowledge the complexity of distinguishing between interpretations of quantum mechanics and the challenges in experimental validation, which may affect the discussion's conclusions.

Alexis1304
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Hello All,
I've just recently read David Deutsch and Michael Lockwood article about Time Travel of 1994 in Scientific American.They stated,that although among the physicists Everett's theory remains controversial,it has no alternatives in Quantum Cosmology and Quantum Computing.Is it really true?Perhaps this post should go under Cosmology section, but I decided to put it here. Thanks for the responses.
 
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Alexis1304 said:
Hello All,
I've just recently read David Deutsch and Michael Lockwood article about Time Travel of 1994 in Scientific American.They stated,that although among the physicists Everett's theory remains controversial,it has no alternatives in Quantum Cosmology and Quantum Computing.Is it really true?Perhaps this post should go under Cosmology section, but I decided to put it here. Thanks for the responses.

Everett had an interpretation, not a theory. There are plenty of alternative interpretations.

The difference is that no one has yet to figure out an experiment that has any chance of discriminating between interpretations. So believe whichever interpretation you like.
 
Hornbein said:
Everett had an interpretation, not a theory. There are plenty of alternative interpretations.

The difference is that no one has yet to figure out an experiment that has any chance of discriminating between interpretations. So believe whichever interpretation you like.
Yes,I understand that,my question is specific about Everett regarding Quantum Cosmology and Computation
 
Alexis1304 said:
Yes,I understand that,my question is specific about Everett regarding Quantum Cosmology and Computation
OK, but I believe that interpretations can't be distinguished in any context. So IMO context doesn't matter. Perhaps I don't understand your question.
 
Hornbein said:
OK, but I believe that interpretations can't be distinguished in any context. So IMO context doesn't matter. Perhaps I don't understand your question.
My question is: ok,Everett's interpretation is considered controversial among physicists,but - prevailing among people who engage in Quantum Cocmology/Quantum Computing,according to Deutsch/Lockwood(1994).My question is - is it really true that Everett has no alternatives in Quantum Cosmology/Quantum Computing?
 
Alexis1304 said:
My question is: ok,Everett's interpretation is considered controversial among physicists,but - prevailing among people who engage in Quantum Cocmology/Quantum Computing,according to Deutsch/Lockwood(1994).My question is - is it really true that Everett has no alternatives in Quantum Cosmology/Quantum Computing?
No, that is not true.
 
Heinera said:
No, that is not true.
I also had gut feeling that it is not...
 

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