Recent content by gentzen

  1. gentzen

    Undergrad Particle vs Wave Interpretations of QM

    Do you have a reference for Zurek? I know that he talks about envariance, but I would like to read where he talks about large numbers of worlds.
  2. gentzen

    Bug Google login on iPad Air 2 not working

    Allowing Cross-Site Tracking didn‘t help. But associating a standard password with the account email did work.
  3. gentzen

    Bug Google login on iPad Air 2 not working

    I will test this tonight. It looks to me like my issue should be solvable on my side, without action from Greg Bernhardt. I will report back the results.
  4. gentzen

    Undergrad Particle vs Wave Interpretations of QM

    Because conceptually, you have a wavefunction of a single electron (or rather a statistical collection of them) at the surface of the detector, which stays the same, independent of whether you use a normal detector screen or a plastic detector screen. And if you take the modulus squared of that...
  5. gentzen

    Undergrad Particle vs Wave Interpretations of QM

    People working on the theoretical side of electron microscopy and charge particle optics know how to compute such scenarios. The question is, how did they learn those fundamentals, and how do they refers to them in their papers. Here is how a Ph.D. dissertation I consulted while working on...
  6. gentzen

    Undergrad Particle vs Wave Interpretations of QM

    My prediction is that the starting positions of the tracks will show the same interference pattern as the normal detector screen. And in such a setup, the angular resolution provided by the tracks will be insufficient to determine through which slit the particle went. (Because the slit is...
  7. gentzen

    Bug Google login on iPad Air 2 not working

    It doesn't work with an iPad Air M2 either. Not with Safari, not with Chrome, and not with Firefox.
  8. gentzen

    Undergrad Particle vs Wave Interpretations of QM

    I thought the intention was to have an experiment where interference can be observed, like for example in...
  9. gentzen

    Undergrad Particle vs Wave Interpretations of QM

    But then the interference pattern becomes much too fine to be resolved:
  10. gentzen

    Undergrad Particle vs Wave Interpretations of QM

    Should have been D ≫ w. I fixed it.
  11. gentzen

    Undergrad Particle vs Wave Interpretations of QM

    My "actual math" rather tells me that "the slits have a finite separation that is small compared to the wavelength of the momentum states involved". Good. Let me parameterize the relevant geometric situation as follows λ: wavelength of proton D: distance between the slits plane and the plastic...
  12. gentzen

    Undergrad Particle vs Wave Interpretations of QM

    We all agree that the plastic is not at the slits, but at the screen. So in this scenario, any "supposed" measurement of the position at the slits is a retrodiction. Good, if you really measure the momentum accurate enough such that the angular resolution allows you to determine which slit the...
  13. gentzen

    Undergrad Particle vs Wave Interpretations of QM

    No, retrodiction is neither bound by uncertainty relations (think about the EPR paper), nor does it necessarily destroy interference. A track of the proton in the plastic can reveal information about its momentum. But because the of the uncertainty relation between position and momentum...
  14. gentzen

    Seeking clarity on the physical definition of an observer

    If you want, you can contact Arnold Neumaier. He recently embraced a research program (basically because TomS triggered discussions which triggered him to explain some related stuff in more detail) with similar "beables" and similar goals...
  15. gentzen

    Undergrad Particle vs Wave Interpretations of QM

    My personal opinion is that Tumulka's claim is a mistake. Even so it remains unclear what Tumulka actually wants to claim, I see no way to interpret his claim in a way that would make it correct. But I see a motivation for making such a claim in the first place: To give a precise physical...