/sci/ - Science & Math

Now you put a detector at one slit to measure which one the photon actually took. What you get is two stripes on the screen. Why?, you ask. Well, it's obvious, you dumb fuck. The photon was in its undefined form while going through the slits, but at the moment you made a measurement with the detector, you actually defined some property (position) of the photon and destroyed the wave that was generated at the exit of that particular slit. The second wave is still present and propagating, but it doesn't have anything to interfere with. Therefore you have a situation, where part of the undefined photon or wave (which, for clarity sake, has not a uniform probability distribution at the the whole of its "width") propagates further as a wave through one slit but it doesn't have anything to interfere with, and a defined particle-like object at the second slit due to act of measurement (keep in mind what measument actually is).

Due to discrete nature of quantum objects the moment when a wave-like object becomes a particle-like object due to measurement is instantaneous and the outcome of the measurement is random due to superposition.
It's similar to electron changing energy levels. There is no in-between. It happens instantaneously.

Now you know. You don't have to thank me.
Cheers.

>make another measure
>act like we never measured in the first place
Nothing personnell

>>12257170
Who is confused by this? Normies may need a bit to actually get what happens in the experiment but most people who've studied anything related to QM understand this very clearly. Were you trying to explain the DSE or were you trying to say something more profound? Not trying to be a dick I legit just don't know what this post is for.

>>12257180
Sorry no understand explain in 10 or less words please

>>12257200
For normies to understand and stop citing Feynman that nothing can explain it.

>>12257170
Now what about for the many-worlds interpretation of quantum mechanics?

congrats for taking like 10 minutes out of your day to provide this surface level explanation of something propably everyone on this board is familiar with
now go back to watching pbs space time

>>12257170
>It means that some of the properties are equally probable at any given time
nope already wrong
goodbye popsci faggot

>>12257180
>Due to discrete nature of quantum objects the moment when a wave-like object becomes a particle-like object due to measurement is instantaneous and the outcome of the measurement is random due to superposition.
It's all classical mechanics all the way down. The model is to cope with the fact that to measure a sufficiently small object, you have to introduce particles of similar momentum into the system. So all you end up doing is changing the momentum of the object. The whole observation changing the behavior of a sufficiently small particle is just that. You don't need any fancy mathematics. Schroedinger's Equation and all the operator methods is just how a statistical model is made to cope with the fact that we are incapable of doing the same type of thing we'd normally do in classical mechanics.

>>12257323
Go ahead and explain to me how you can build a model using classical mechanics that beats the bell game.

>>12257323
Wrong

>>12257170
>Before the act of measurement
>the particle
Lol. Cool religion

>Or at least that's what the math is saying.
Of course that's what it "says", math is a description.

>so you, dumb ass incels, could understand - that the cat is at the same time dead and alive
But that's a bullshit thought experiment not based in reality.

>The particle behaves as a wave and so are it's properties.
Waves of what?

>They are "smeared", undefined. Got it? Good.
So then I should ignore you trying to define it then?

>Now, the measurement. What it means to measure something? It means to use some physical property that interacts with some property of the measured object, to get some information about the said object as a whole, or the measured property or any other characteristic of the object related with the measured property. It means to define something.

Now where does the "standard of measure" come from?

>>12257180
>Due to discrete nature of quantum objects the moment when a wave-like object becomes a particle-like object due to measurement is instantaneous and the outcome of the measurement is random due to superposition.
>It's similar to electron changing energy levels. There is no in-between. It happens instantaneously.

So "Speed of light" is bullshit then?

>>12258309
stfu berserkerfag

>>12258321
>no don't say that!
Why?

>>12257170
If measurement collapses the wave function, then how come you can un-collapse it by scrambling the measurement data?

>>12257323
Entangled photons aren’t compatible with classical mechanics. If you create a pair of entangled photons with a beam splitter placed after the double slit, one half goes to a screen, the other half goes to a detector. If you measure the partner photon, the other one acts like a particle. If you don’t measure it, then it’s a diffraction. Explain how that’s compatible with Newtonian physics. Also if you measure the path data, but then later use half slivered mirrors that makes it so you can’t tell which way it went through. Then the pattern on the screen goes back to being a diffraction.

>>12257170
I now have a quantumn erection

super position is just a way for the simulation to save RAM

>>12257170
This is only under collapse-based QM interpretations, though, and no one knows for sure if they're correct or not.

>>12258494
unironic gigabrain

>>12257170
>"a balloon turns into a car, but only if you look at it"
Quantum mechanics is inherently difficult, simply because it's not the same as everyday life

Reality is not constrained by what makes sense to humans.