All Questions
Tagged with quantum-entanglement wavefunction-collapse
12
questions
14
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3
answers
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When light reflects off a mirror, does the wave function collapse?
This question is specific to the Copenhagen interpretation, which states that the wave function collapses on interaction. If we have a beam of light reflected off a mirror, whether you see this light ...
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How is it possible that quantum phenomenons (e.g. superposition) are possible when all quantum particles are being constantly observed?
I don't understand how quantum mechanics (and therefore also quantum computers) can work given that while we work with quantum states, particles that this quantum state consist of cannot be observed, ...
- 333
19
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1
answer
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Is my interpretation of the underlying idea behind this 2022 Nobel Prize story “How physicists proved the universe isn’t real” more or less accurate?
I’m not very good at math but I frequently watch PBS Spacetime on YouTube to try to satisfy my curiosity about physics despite that.
In a recent video by Dr Ben Miles titled “How Physicists Proved the ...
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3
answers
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Are combined fermion wavefunctions still antisymmetric after wavefunction collapse?
If we have two electrons in a state $|\psi\rangle=\frac{1}{\sqrt2}[|\uparrow\downarrow\rangle+|\downarrow\uparrow\rangle]$ and we measure the spin of the first electron to be up, does the wavefunction ...
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2
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Does entangled states must become non entangled states after the measurement?
In tensor notation. A state vector $|uv\rangle$ is a tensor product(non entangled states) if and only if there is $A\in E_1(u)$ and $B\in E_2(v)$ such that $A\otimes B$.
So by postulate of quantum ...
- 1,048
0
votes
3
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Is there a way to detect the collapse in wave function of entangled particles instantaneously? [closed]
Is there a machine or instrument which will notify us instantly when the wave-function has collapsed if we have access to only one of the entangled particles? Note that the wave function collapse will ...
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2
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Does Quantum Entanglement happen between two wavefunctions? [closed]
Does the entanglement happen between two particles or two wavefunctions? If it's wavefunction then what happens to the two wavefuntions after getting entangled?
6
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4
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Doesn't the Schrödinger's cat inside the box cause the probability wave function to collapse long before a human opens the box?
My point is that there is no superposition of dead and alive. The cat will cause the probability function to collapse long before we open the box. What am I missing here? Isn't the cat capable of ...
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2
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Entropy before and after collapse of the wavefunction and interpretation?
Seems like it might be pretty rudimentary but I want to see if my thinking is on the right track as well as what the result means.
The question is, is the entropy of the collapse of a wavefunction or ...
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3
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4
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Entanglement and the double slit experiment
Is the double slit experiment an example of entanglement when it seems as if the photon is going through both slits? Or put another way, is it at this stage when we attempt measurement we see a photon ...
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2
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When does quantum entanglement cease?
On Wikipedia on Quantum entanglement:
“However, this behavior gives rise to seemingly paradoxical effects:
any measurement of a property of a particle performs an irreversible collapse on that ...
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6
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Problem regarding quantum entanglement and special relativity
So this question is about the strange phenomenon of quantum entanglement, or "spooky action at a distance", as Einstein called it. In particular, it's about the simplest conceivable case of ...
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