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| Tags: nonlocality, quantum |
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Hi John Jones , you wrote :
" Does ' non-local ' mean : we expect things not to be where they are , or where they should be ? " In quantum mechanics many particles are perceived to exhibit nonlocality . For example : The position of an electron " Orbiting " a nucleolus is perceived to be probabilistic . Scientists don't perceive a continuous ( local ) movement from one place to another . i.e. They don't perceive a velocity . Similarly , in the EPR experiment : A special pair of particles is perceived to be entangled even after they've been separated for miles . Einstein called this " Spooky action at a distance " . Changing one member of the pair seems to instantly ( i.e. nonlocally , no time indicates no length ) change the other pair . Cryptographers are trying to exploit this apparent nonlocality to transmit passwords . ( But I don't know how they prevent an interception . ) |
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