peto (he/him)

  • 0 Posts
  • 42 Comments
Joined 1 year ago
cake
Cake day: June 18th, 2023

help-circle







  • Because you seem to have a problem with me saying that all observations are interactions.

    Futher, if it is true that if observations are interactions, then RQM must be true, surely it goes from a fringe interpretation to just simple fact unless you can find a counterexample?

    At this point, I’m not even sure I quite see what your point is supposed to be.



  • AHH, I think I see what you have misunderstood. I am not saying all interactions are observations, rather that observations are a subset of interactions, hence uncertainty.

    Furthermore I think it would be more useful to say that the wave function only collapses when it is actually necessary to the interaction rather than when it interacts with ‘us’. Unless you can provide a counterexample. Privileging observations made by humans reeks of mysticism in my opinion and is the cause of a lot of the misunderstandings about quantum physics among laypeople.




  • peto (he/him)@lemm.eetoScience Memes@mander.xyzElectrons are easy
    link
    fedilink
    English
    arrow-up
    7
    ·
    edit-2
    4 months ago

    We have such devices, unfortunately they tend to use electrons instead (electron microscopes). We also have devices that just work by measuring the electromagnetic field (atomic force microscopes). Again though, to measure the field you have to interact with it, so you can’t do it immaculately.

    Electrons are especially hard because they are so incredibly light yet intensely charged compared to everything that can actually interact with them.

    When talking about particles, the interaction very rarely involves actual contact, as that tends result in some manner of combination. Two electrons for instance don’t really bounce off each other, they just get close, interact and then diverge. If a photon ‘hits’ an electron it gets absorbed and a new one is emitted. Look up Feynman Diagrams if you want to see some detail to this. I don’t think you need any deep knowledge to benefit from looking at them, they are really quite an elegant way to visually show the mathematics.



  • peto (he/him)@lemm.eetoScience Memes@mander.xyzElectrons are easy
    link
    fedilink
    English
    arrow-up
    71
    arrow-down
    2
    ·
    4 months ago

    It’s because to observe something you have to interact with it. Dealing with particles is like playing pool in the dark and the only way you can tell where the balls are is by rolling other balls into them and listening for the sound it makes. Thing is, you now only know where the ball was, not what happened next.

    In the quantum world, even a single photon can influence what another particle is doing. This is fundamentally why observation changes things.