All Questions
61 questions
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Why can't be the EPR experiment simplified?
Alice measures the spin of her electron on the x axis. She now knows the spin value of Bob's electron on the x axis at time T0. Bob measures the spin of his electron on the z axis. He now knows the ...
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Why does a violation of locality not imply a violation of relativity?
This question is closely related to: What counts as information?
Taking the specific example, again, of the EPR experiment. I think everyone agrees on the following:
The act of measuring the ...
CommunityBot
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What counts as information?
What counts as information? In e.g. the EPR experiment why is one entangled particle knowing instantaneously the state of the other not counted as 'information'.
Edit
Following a discussion in the ...
0
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1
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How does this youtube video demonstrate quantum entanglement? [closed]
The following is an experiment that shows "spooky action at a distance" of quantum entanglement; that is, when we measure some properties of two entangled photons, we find that measuring property of ...
CommunityBot
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4
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6
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Explanation for the EPR-like paradox
I am trying to understand the process of Quantum Entanglement for use in Quantum computers.
The problem I have is this:
Suppose some nuclear process emits an electron-positron pair. Now after ...
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1
answer
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Some applications of the Einstein-Podolsky-Rosen (EPR) paradox?
If you were to explain the Einstein-Podolsky-Rosen paradox to high school students (age 16, with no particular strength in math), what kind of intuitive example would you provide to make things ...
- 213k
2
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0
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93
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EPR Experiments and Monogamy
Normally in an EPR experiment two measurements are performed on entangled particle pair. Only the particle pair is treated quantum mechanically and it is usually prepared in a state like
$$ (\,\left|\...
- 3,540
4
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4
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Why isn't quantum entanglement just a lack of information?
From this question and answer from joshphysics, I didn't understand one thing, even after reading the comments:
Why should assume that entangled electrons will only "decide" their state after ...
CommunityBot
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12
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2
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EPR-type experiments and faster-than-light communication using interference effects as signaling mechanism
I understand that faster-than-light communication is impossible when making single measurements, because the outcome of each measurement is random. However, shouldn't measurement on one side collapse ...
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10
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Is quantum entanglement mediated by an interaction?
You can get two photons entangled, and send them off in different directions; this is what happens in EPR experiments. Is the entanglement then somehow affected if one puts a thick slab of EM ...
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Relativity and Entanglement
Say we have two particles which are entangled so that they have opposite spins. If one is up, the other is down. They are sent off to two spatially separated observers A and B. Both observers can ...
- 213k