Linked Questions

9
votes
5answers
9k views

Does entanglement not immediately contradict the theory of special relativity? [duplicate]

Does entanglement not immediately contradict the theory of special relativity? Why are people still so convinced nothing can travel faster than light when we are perfectly aware of something that does?...
2
votes
3answers
1k views

Causality and Quantum uncertainty [duplicate]

Possible Duplicates: Why quantum entanglement is considered to be active link between particles? Why can't the outcome of a QM measurement be calculated a-priori? Why do some (the majority of?) ...
9
votes
5answers
566 views

Quantum Entanglement, connected or just in tune? [duplicate]

I read a few of the questions suggested to be similar, but I didn't see what I am looking for. Please feel free to point me in the right direction if I just missed it... (there are quite a few). ...
1
vote
3answers
550 views

Quantum entanglement: does it necessarily imply superluminal information transfer? [duplicate]

From what I understand, information is communicated instantly between two quantum-entangled particles regardless of the spatial distance between them. However, does this necessarily imply superluminal ...
5
votes
2answers
214 views

Prepared states and quantum entanglement [duplicate]

Imagine two entangled quantum particles in the singlet state, one held by Alice and the other by Bob. Alice and Bob are both widely separated. Bob measures his spin in some axis and finds it to be ...
0
votes
3answers
365 views

What is the cause of quantum entanglement? [duplicate]

I understand the idea of quantum entanglement - where what happens to one particle in one location instantly effects another particle in another location, even if separated by millions of miles. But ...
2
votes
3answers
150 views

What is spooky about the entanglement? [duplicate]

If it doesn't allow for transmitting of any information, what was/is "spooky" about it? Is there anything spooky about it at all in the end?
2
votes
1answer
249 views

What makes quantum-entanglement communication so surprising? [duplicate]

I don't understand why quantum entanglement seems so surprising to physicists in the case of communication. Let us say we take a pair of shoes, and put the two shoes in two separate boxes, and shoot ...
-4
votes
1answer
134 views

Can someone explain in a simple manner that How can we use Quantum entanglement to transfer data instantly when we seperate photons? [duplicate]

So I'm an IT engineer and i just watched a video about Quantum entanglement, that somehow when we split the entangled photons, any change happening to one of them will be reflected to the other one ...
3
votes
0answers
157 views

Why do we think that quantum entanglement implies action at a distance? [duplicate]

Possible Duplicate: Why quantum entanglement is considered to be active link between particles? I am a layman trying to read into quantum mechanics. As I understand it quantum entanglement is an ...
-1
votes
1answer
114 views

Quantum entanglement and affecting the particles [duplicate]

I am trying to grasp some aspects of the quantum entanglement, but the existing resources (including some of the links here) seem a bit confusing. I am trying to find an answer to the following ...
0
votes
2answers
99 views

Better Entanglement Explanation Required [duplicate]

It seems to me I have not read or understood a better explanation for quantum entanglement than Einstein's left and right glove explanation. If some Aspect (pun intended) of an entangled quantum ...
1
vote
3answers
112 views

Difference between an entangled pair of photon and two magnets in a box? [duplicate]

I try to understand quantum entanglement and especially what it’s called « Action at a distance » from my understanding, if you have a pair of entangled photon, after measuring the polarization of ...
87
votes
10answers
12k views

Quantum Entanglement - What's the big deal?

Bearing in mind I am a layman - with no background in physics - please could someone explain what the "big deal" is with quantum entanglement? I used to think I understood it - that 2 particles, say ...
39
votes
6answers
8k views

Do all the conservation laws of Physics take no time to propagate?

For instance, conservation of momentum, does it take time to propagate between two or more objects? If it does, then there would be some moment that the momentum is not conserved. If it doesn't take ...

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