The state of entangled particles?

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vxd_dev2015-12-29 15:48:43

Physics

vxd_dev, 2015-12-29 15:48:43

Hello, I watched
a video about entangled particles: postnauka.ru/video/56300 Please tell
me why it is considered that the state of a particle is not determined until the moment of measurement? (Is this the same as that the particle has a certain state, but we don’t know it?) It also stipulates that we cannot influence this state in any way, <assumption> therefore it should be the same as at the moment of binding, isn’t it ? Or something can change the state of the particle? If so, why not use the same mechanism to transfer information?
Thank you.

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2 answer(s)

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Night, 2015-12-29
@vxd_dev

As far as I remember, from popular science sources, the fact of measuring (reading) a particle changes the state of the particle itself.

P

Prk11, 2015-01-01
@Prk11

Light is also made up of particles. To "see" a particle, they hit it with comparable particles. Imagine that you are trying to "see", for example, a table by throwing other tables at it. In general, the world of elementary particles is very different from what we are used to. There's a lot that doesn't match our experience. How, for example, to understand the statistical model of particle formation. This is when, under the same conditions, when the same particles collide, different particles can result from their interaction. And it is impossible to guess which particle will turn out in the end, only the probability of the occurrence of one or another particle is known.