All Questions
Tagged with non-locality faster-than-light
12
questions
-2
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4
answers
209
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Could reducing entanglement by unitary operations allow for FTL-communication? (and why not?)
About the closure: This Question is about why manipulating 1 particle of an entangled pair unitarily can’t cause measurable consequences on the other and how this manifests in the concretely described ...
- 1,202
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2
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130
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Can a non-local theory be consistent with special relativity?
If there was a non-local theory that explained quantum entanglement correlations, does it follow that it would violate special relativity?
- 1
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3
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192
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How do non-local correlations occur in QM without a cause? [closed]
The Copenhagen interpretation of QM ultimately amounts to asserting that non-local correlations occur without a cause since that cause would involve propagation of information faster than the speed ...
user398827
3
votes
1
answer
107
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Nonlocality of a bug on movie screen
I am currently learning quantum mechanics using Griffiths. In the appendix, he goes to talk about EPR and Bell's inequality, and that experimental verification of Bell's inequality rejects the "...
0
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3
answers
261
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Does quantum entanglement necessitate that two particles communicate their state with one another?
I often hear it said that quantum particles, like an electron-positron pair or two entangled photons, which are entangled with one another communicate or transfer information about their state ...
- 121
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1
answer
61
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Does non-local interepretations of quantum mechanics imply FTL communication? [closed]
For example the pilot wave theory... And if this is the case then does FTL commuincation imply time travel (i.e: information going back in time).
2
votes
1
answer
99
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Why does implementing the annihilation operator $\hat a$ not allow action at a distance?
I was reading a paper (link) in which they implement action at a distance using the annihilation operator, and in it they say that "this observation does not imply superluminal signaling because ...
- 135
1
vote
4
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457
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How can quantum entanglement not be non-local?
I know this kind of question has been brought up many times.I have read many posts here regarding this but I still have a problem with a certain aspect of it so please bear with me.
Lets consider the ...
- 1,037
6
votes
2
answers
636
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Is there non-locality in the AdS/CFT?
Many String theorists are trying to restore bulk locality in the AdS/CFT. So does that mean the CFT, the boundary, is non-local? Does matter travel faster than light on the CFT?
user162728
3
votes
1
answer
498
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About the nonlocality of QM and faster-than-light/backward-in-time machines
The fact the quantum mechanics is nonlocal is known already for a long time, since the Bell works (1966 and later) and the Aspect's group experiments confirming the Bell-type CHSH inequality (1980 ...
- 6,896
2
votes
2
answers
352
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Non-locality in non-relativistic Quantum Mechanic
I guess the following obvious question is answered by any flavor of relativistic Quantum Mechanics, but I just wanted to check whether I understand correctly:
Is it correct that nonrelativistic QM ...
- 274
7
votes
2
answers
999
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Why does the Dopfer EPR experiment require coincidence counting?
Dopfer Momentum-EPR experiment (1998) seems to provide a interesting tweak in the EPR experiment.
To read more details on this experiment, see:
Page 3 (labelled S290) of 'Experiment and the ...
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