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Is it possible to change a fundamental property of a particle?
If that can be done, will it's twin particle's state also be altered accordingly?
If that can be done, will it's twin particle's state also be altered accordingly?
Something like changing the spin?What exactly do you mean by "changing a fundamental property"?
What "twin particle"?it's twin particle's
Changing what about the spin? Its magnitude or direction?Something like changing the spin?
If two entangled particles are produced, let's take one of them to be the twin of the other.What "twin particle"?
Direction.Changing what about the spin? Its magnitude or direction?
That's not really correct, since nothing requires the two particles to be of the same type.If two entangled particles are produced, let's take one of them to be the twin of the other.
How are you going to change the direction of spin of one of the particles? Is it something that will also affect the other particle? Or are you arranging things so the particles are far enough apart that you can just act on one of them?Direction.
Yes. That is the case.Or are you arranging things so the particles are far enough apart that you can just act on one of them?
In the situation you describe, there are 2 types of transformations you can do on Alice's entangled particle (one "twin").Yes. That is the case.
So does that mean if an irreversible measurement is made on Alice's particle and it is found to have a clockwise spin, does Bob's particle have an anti clockwise one (again, assuming an irreversible measurement has not been performed by Bob) ?1. An irreversible measurement. Bob's particle will now be in a state consistent with the outcome of the measurement on Alice's particle (assuming an irreversible measurement has not already been performed by Bob).
It depends on the type of entanglement. Much entanglement is anti-correlated (opposite values), due to conservation principles. However, there are also cases where the entanglement is correlated. And other cases where the sum of 2 values will equal a constant, which is again due to conservation.So does that mean if an irreversible measurement is made on Alice's particle and it is found to have a clockwise spin, does Bob's particle have an anti clockwise one (again, assuming an irreversible measurement has not been performed by Bob) ?
I didn't quite get what consistent means here.
Fine. Thanks a lot.It depends on the type of entanglement. Much entanglement is anti-correlated (opposite values), due to conservation principles. However, there are also cases where the entanglement is correlated. And other cases where the sum of 2 values will equal a constant, which is again due to conservation.
That's not correct. Generally speaking, any time particles interact, they can become entangled.two particle are entangle or not was decided at the moment when it was created.