Abstract
A measurement apparatus influences a classical object in a deterministic way, such that in principle the disturbance by the measurement can approach zero. In a measurement of a quantum mechanical object there is always a minimum amount of indeterministic disturbance of the object, connected to the amount of extractable information. This difference was already discussed by Heisenberg in 19271 and subsequently by many authors using various Gedankenexperiments.
© 1994 IEEE
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