/sci/ - Science & Math

>>5554080
How is it not a measurement?

Honestly time isn't that important. Usually the first thing physicists do is strip away the time component of the schroedinger equation.

>>5554089
If time has stopped, how would the electron know it has been measured?

>>5554080
>electrons
>inplying they exist

>>5554099
electrons are not conscious whether time has stopped or not

You can't stop time. You can slow them down by freezing them however

What you want to do is not "stop time" (which is outside physics so we can only guess what would happen) but minimize the disturbance on the electron by making the interaction very weak. You can still get a measurement result by looking at a lot of atoms and averaging. This is called weak measurement. The result is a probability amplitude-weighted average of the measured quantity over all the different paths the particles take. If you measure the charge density this way, you will find a spread-out average charge density.

>>5554080
>stop time
>light doesn't reach your camera
uh oh

What thew fucks going on here? Have any of you people even looked at a QM textbook? Im talking about /sci/ in general here, not just this thread. And not the people who ask the questions, but the people who feel the need to spout retarded bullshit that sound as if you vaguely remember it from some popsci on the discovery channel while falling asleep drowning out the couple of posts who are correct in this shit. If you dont know the answer (and coming up with something all by yourself without studying it is not an answer), dont. fucking. post.

Even if time is taken out, its still a measurement. The information about the electron is important, not the physical measurement.

You couldn't do anything because time is stopped.

>>5554129

You're taking the pragmatic approach to not answering?

The question he is asking makes sense regardless of whether it can be done or not.

If we interpret "stop time" as "make the measurement procedure very rapid" then no, this does not decrease the disturbance on the electron, and you will find it in a specific place.

>>5554134
If time is made up of individual slices and every slice has the electron in a specific position, wouldn't that mean it has a definite position throughout time?

>>5554193
>every slice has the electron in a specific position
but it doesnt. every slice will have some wave-function. do you think that we use probability densities becasue the electron is just moving around really fast?

>>5554211
Exactly. This is why oversimplification is bad. People think VdW forces are caused by electrons having definite position, but for some reason jumping about a lot.

>>5554211
Okay, so if we stopped time the electron would be smeared?

>>5554220
>tfw this is what I was taught

>>5554224
the electron is in a superposition of different positions, so i guess you can say its "smeared out" if you mean that by it.