4
votes
Where are the images of non-interference patterns?
The image you show is misleading or rather wrong, even. In the case where it is detected wether a photon goes left or right (usually done by putting a vertical polarizer in front of one slit and a ...
- 2,693
4
votes
Accepted
Does measuring a quantum object collapse the wave function even if the particle is not found in the position where it was measured?
The "collapse of the wave function" is a very unphysical concept: It was invented within the Copenhagen Interpretation by people who tried to make sense of Quantum Mechanics, and who ...
3
votes
Does measuring a quantum object collapse the wave function even if the particle is not found in the position where it was measured?
We are talking about a statistical law here. The probability of finding the particle in region $[x+\Delta x]$:
$$
P(x < X < x+\Delta x)=|\psi(X)|^2\Delta x=w
$$
This means that, after performing ...
- 61.8k
2
votes
Accepted
Can we cancel out light in the same way we do sound using interference?
Yes. and this is done in labs and products already.
The shortest quickest answer is to refer you to youngs double slit experiment as yhou've mentioned, passing light through two slits will allow you ...
- 2,053
2
votes
Another question about why FTL is not possible in the Quantum Eraser Experiment but using a Mach–Zehnder this time
This is another great experiment in the arsenal of the Zeilinger teams. They have been exploring as many variations on what is usually called "quantum nonlocality". Many of there ...
- 1,588
2
votes
Another question about why FTL is not possible in the Quantum Eraser Experiment but using a Mach–Zehnder this time
@DrChinese is actually an expert in this field, so I'll defer to his answer when he responds. In the meantime, though, having looked at the original paper I believe the book misrepresents the ...
- 10.1k
1
vote
Does measuring a quantum object collapse the wave function even if the particle is not found in the position where it was measured?
You write:
Properties of quantum objects are determined by a wave function.
Not exactly. The wavefunction represents the evolution of the system. Sometimes that evolution involves what is happening ...
- 9,265
1
vote
Double slit experiment with two sources
From a typical high school physics textbook view your question is interesting ... but using a more modern understanding ... maybe taking a quantum optics course ... a new perspective will yield the ...
- 2,760
1
vote
Why does classical physics not predict particles in the double-slit experiment to land in just two different locations?
Lots of great answers but I didn't see anyone really address this aspect of your question the way I would do so -
every single video I watch on the topic doesn't even bother to explain why the ...
- 482
1
vote
What happens in the double slit experiment if the detector is close to the slits?
Bricmont (Quantum Sense and Nonsense, 2017, pp.22-23) explicitly says that the interference disappears if the slits and detector are too close, but the consensus appears to be the converse. I only add ...
- 111
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