All Questions
14 questions
2
votes
2
answers
353
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Quantum Eraser thought experiment with light photons of distinct color
I tried to recreate the Quantum Eraser experiment into a thought experiment with a few changes. It left me a little perplexed as to what outcomes I should expect. Any help would be appreciated.
Lets ...
- 21
1
vote
0
answers
134
views
Creation of entangled electrons
If one obtains two entangled in polarization photons by parametric down conversion and one of them is accepted by and electron 1 and other by electron 2 - are this electrons now entangled in spin?
- 679
15
votes
4
answers
23k
views
How do particles become entangled?
A person asked me this and I'm just a lowly physical chemist.
I used a classical analogy. (How good or bad is this and how to fix it?)
Basically, light has a net angular momentum of zero, insofar as ...
- 151
12
votes
1
answer
887
views
How to tell whether photons are entangled?
Suppose you have some sort of a "black box" system - you know nothing of its inner workings. The system has two outputs, let's call them A and B, and it occasionally emits photons - one photon from ...
- 289
4
votes
3
answers
1k
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Faster-Than-Light Communication using Entangled Photons [duplicate]
Based on my understanding of the “Double-Slit Quantum Eraser Experiment”, documented here: http://grad.physics.sunysb.edu/~amarch/, it seems that Faster-Than-Light communication is possible. Of ...
- 61
4
votes
2
answers
686
views
Temporal delay between entangled photon pair
When generating entangled photons by means of Spontaneous Parametric Down-Conversion SPDC, the usual assumption is that the two photons are created at the same time. I have not been able to find any ...
- 7,295
3
votes
4
answers
4k
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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 ...
2
votes
2
answers
501
views
Why are results of Bell's experiments considered to "break realism"?
Related to my previous question (Why would classical correlation in Bell's experiment be a linear function of angle?), as a newbie in quantum mechanics, I am also unable to find the reason to why ...
- 519
2
votes
2
answers
199
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Entanglement Observation
I'm thinking that light slows down in a medium because photons are being absorbed and then remitted by atoms or molecules in the beam. This would imply that the photons which leave a lens or filter ...
- 12.2k
1
vote
2
answers
425
views
Entanglement in double slit experiment
Suppose we send 2 entangled photons through the 2 slit, does measuring the position of one of the photons affect the other particle's wave function or does the other particle still behave as a wave ?
1
vote
1
answer
179
views
Is photon's direction entangled?
Consider a free electron, with photon, that runs to electron under some angle(as everybody says). Compton scattering is happening, and electron instantly reemits photon in different angle.
First, ...
user205628
1
vote
1
answer
646
views
How do scientists produce entangled photons?
In many experiments like the Delayed Choice Quantum Eraser Experiment, scientists use entangled photons.
How do scientists make/obtain them?
What is the realistic level of control scientists have ...
- 2,167
0
votes
2
answers
529
views
Does a normal torch emit entangled photons?
I was reading a sciencenews.org post about three photons being entangled. My question here is, why is the chance of producing an entangled pair once in a billion times? Isn't every particle produced ...
- 2,489
0
votes
4
answers
135
views
Can someone put entanglement in laymens terms? [duplicate]
Can someone put entanglement in laymens terms? I understand that photon spin affects an entangled photon across any distance, what I don't understand is how spin works, does a photon only have "spin ...
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