About twin electrons?

Question

Is it true that twin electrons act as if they were joined? Like the phase of one electron of a twin is manipuled and the other electron no matter the distance will change phase in excactly the same manner at the same time. If this is true could we make a computer type device, each one made with twins of each other that could be used to communicate over long distances of space instantly?

Answer 1

You're taking about quantum entangled states. Whle it's true that quantum information can be passed "instantaneously" between such entangled pairs, unfortunately, there is no way to send real messages. A real message, one with information in it, is called an "measurable", or "observable", in quantum physics, while the kind of quantum information that's being passed between entangled pairs is not a measurable. That's not to say such quantum information has no value. Indeed, future computers based on quantum logic and qubits will be based on this, and such computers will be extraordinarily powerful. We just can't send emails that way.

As an analogy of what's the problem, let's say we have two people with a deck of cards, both at different locations. The decks of cards is an entangled pair. Both are told to flip the cards one by one and record if it's red or black. When the records are compared, it's seen that whenever one drew a black, the other drew a red, and vice versa. However, unless they compared records, there is no way to tell if any information, quantum or otherwise, is being transmitted, because to each, it looks completely random and normal before they compared notes.

Answer 2

The idea of instantaneous communication will never happen.
The only way you could achieve some thing like that may be by reverse extrapolation.