How Is Vladmodels Legal?

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"The principle of locality states that physical processes that occur in one place may not have immediate effect on elements of reality to another place, separate from the first. At first glance, this assumption appears reasonable, in fact at the macroscopic level is reasonable, since it is a consequence of special relativity, which states that the information can never be transmitted at speeds greater than light without violating causality. It is generally believed that any theory which violates causality is also internally inconsistent, and therefore completely unsatisfactory.

It is found that quantum mechanics violates the principle of locality without violating causality. Causality is preserved because there is no way for Alice to transmit a message (information) to Bob by varying the axis along which makes the measure. Any axis you choose, always has a 50% chance of getting "+" and 50% to get "-" completely at random, according to quantum mechanics, it is quite impossible for her that will affect the outcome. In addition, Bob can do his measure once, since the collapse of the wave function caused by the extent irreversibly disturbs status measured: there is a basic property of quantum mechanics, known as the "no cloning theorem ", which makes it impossible for the viewer to do, say, a million copies of the electron he receives, perform measurements on the spin of each, and then analyze the statistical distribution of results. So, in the only measure that is allowed to do, there is a 50% chance of getting "+" and 50% to get "-" regardless of whether its axis is aligned or less with that of Alice.

However, the principle of locality is strongly recalls the macroscopic level of physical intuition, and Einstein, Podolsky and Rosen did not want to leave. Einstein derided the predictions of quantum mechanics as scary action at a distance. The conclusion we drew was that quantum mechanics is not a complete theory.

It should be noted that the word locality has several meanings in physics. For example, in quantum field theory "locality" means that fields in different points of space do not interact with each other. However, the quantum field theories that are local in this sense violate the principle of locality, as determined by EPR. "