Why does the change in one molecule effect the another?

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Suppose two particles or molecules are generated (produced) together. If one molecule is taken away from the another, let us say to another city. If we make some certain changes in anyone of them, e.g if we change its motion if it was in clock wise and we change it to anti-clock wise. So by making changes in each of them the another one adopts the change itself. WHY?
 
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akmafia001 said:
Suppose two particles or molecules are generated (produced) together. If one molecule is taken away from the another, let us say to another city. If we make some certain changes in anyone of them, e.g if we change its motion if it was in clock wise and we change it to anti-clock wise. So by making changes in each of them the another one adopts the change itself. WHY?

This doesn't happen, even with entangled particles.

Making a change to a particle here in a pure state (such knowing it is "clockwise" in your example) never changes its entangled partner. Since it is in a pure state, it is not entangled on that basis. Further, if it is in a superposition on a particular basis, you can gain information about it but cannot do anything more than gain the same information about the other one. You can't make it be "clockwise" and transmit that to the other particle.
 
I think so it doesn't happen normally. But the biggest reasearch ever done and costed billions of dollars was this. The research was based on it, why the one effects the another?
 
akmafia001 said:
I think so it doesn't happen normally. But the biggest reasearch ever done and costed billions of dollars was this. The research was based on it, why the one effects the another?

Uh, sorry, no such thing happened. I wish even millions were spent. :smile:

Perhaps you have a reference, as around here we like to deal with factual information where possible.
 
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If we release an electron around a positively charged sphere, the initial state of electron is a linear combination of Hydrogen-like states. According to quantum mechanics, evolution of time would not change this initial state because the potential is time independent. However, classically we expect the electron to collide with the sphere. So, it seems that the quantum and classics predict different behaviours!
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