Lectures on Interpretation of Quantum Mechanics

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Discussion Overview

The discussion revolves around various interpretations of quantum mechanics, referencing a series of lectures hosted by the Perimeter Institute for Theoretical Physics. Participants share insights on different interpretations, recommend resources, and express opinions on specific content from the lectures.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant highlights the roster of speakers at the Perimeter Institute lectures, mentioning various interpretations such as Many Worlds, Bohmian mechanics, and the Statistical Interpretation.
  • Another participant expresses appreciation for the shared link to the lectures.
  • Some participants recommend Ballentine's PDFs, noting that the second one is particularly useful for those with a background in probability theory, while also critiquing certain aspects of the content, such as the explanation of the Zeno paradox.
  • One participant discusses the implications of continuous measurement in quantum mechanics, suggesting that if measurements are made finely spaced, the system's evolution should halt, but emphasizes the need to differentiate between the collapse postulate and actual interactions.
  • Another participant mentions their difficulty accessing Ballentine's PDFs but references his book, discussing the reasoning behind the paradox and the conditions under which the system does not stop.

Areas of Agreement / Disagreement

Participants express varying opinions on the interpretations of quantum mechanics and the resources available, with no clear consensus reached on the critiques of specific interpretations or the implications of continuous measurement.

Contextual Notes

Some claims regarding the correctness of formulas and explanations are presented without resolution, and there are unresolved discussions about the relationship between inductive inference and quantum mechanics.

Doc Al
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I stumbled across this site quite by accident. I've never heard of the Perimeter Institute for Theoretical Physics, but they know how to party!

Earlier this year they hosted a series of lectures on "Interpretation of Quantum Mechanics: Current Status and Future Directions". A top-notch roster of speakers including: Wallace on Many Worlds; Goldstein on Bohmian mechanics; Ballentine (my hero) on the Statistical Interpretation; Pearle on Spontaneous Collapse; Griffiths on Consistent Histories; and several others (including Lucian Hardy). And experimentalists Zeilinger and Aspect as well.

The lectures are all here for your viewing pleasure. If you have any interest in these things, check it out: http://www.perimeterinstitute.ca/activities/scientific/QT-LECTURES/
 
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Thanks, DocAl, this was a highly useful post. :smile:

Daniel.
 
Personnally, I recommend Ballentine pdfs, especially the 2nd one for the ones who have a sufficient knowledge on probability theory. (except for the zeno paradox part, where the explanation, in my opinion, fails to explain the source of the paradox) .

Formula end of page 7 seems to be wrong (no 1/T), but the result is ok.

It is a pity :frown: he has not sufficiently developped the logic of inductive inference section and its relationship with QM.


Seratend.
 
Thankyou for the link
 
Don't forget to watch the excellent lecture by Leifer on Quantum Logic (although my opinion on it might be slightly biased).

And, yes, we do know how to party - at least as far as it is possible for a group of theoretical physicists to party.
 
seratend said:
Personnally, I recommend Ballentine pdfs, especially the 2nd one for the ones who have a sufficient knowledge on probability theory. (except for the zeno paradox part, where the explanation, in my opinion, fails to explain the source of the paradox) .

Formula end of page 7 seems to be wrong (no 1/T), but the result is ok.

It is a pity :frown: he has not sufficiently developped the logic of inductive inference section and its relationship with QM.


Seratend.

I can't for some reason at the time to get ballentines PDF's to up load, but I do have his book Quantum Mechanics: A Modern Development and the watched pots in it. His line of reasonong was if measurements are made so finely spaced as to make the measurements a continuous specturm that the systems evolution should come to a halt. In the book there's sufficent reason as to why that paradox is false.
 
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statespace101 said:
I can't for some reason at the time to get ballentines PDF's to up load, but I do have his book Quantum Mechanics: A Modern Development and the watched pots in it. His line of reasonong was if measurements are made so finely spaced as to make the measurements a continuous specturm that the systems evolution should come to a halt. In the book there's sufficent reason as to why that paradox is false.

Yes, the system stops if you have a real interaction that becomes infinite for short time.

However, the important point, in my opinion, is to understand we should not mix the collapse postulate with an action on the system (the source of the paradox - not explained in the pdf which is focused on the infinite interaction).

(if we have not infinite interactions, the system does not stop: continuous measurement is possible and the collapse postulate still works and the system under measurement is not stopped).

Seratend.
 

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