INDETERMINACY RELATION: The Copenhague Interpretation 5)
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F. SUPPE summarizes it as follows:
"Exploiting the fact that microscopic particles sometimes act like corpuscles and sometimes like waves, the HEISENBERG indeterminacy relation is interpreted as showing the impossibility of measuring a physical quantity without causing a disturbance. Any attempt to improve the measurement of a parameter which characterizes a system will have the inevitable result of disturbing the value of another parameter of the system: unlike the macroscopic level, on the microscopic level these disturbances will be non-negligible; thus it is impossible to find the position and velocity of a subatomic particle at one moment with complete accuracy" (1978, p.182).
Indeed, at the macroscopic level, velocity is measured by comparing two or more successive positions, which implies that in these cases measurement of position and velocity, while accurate, cannot be really simultaneous. The real difference with microscopic particles is that here the system's identity is not significantly affected.
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Bertalanffy Center for the Study of Systems Science(2020).
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Bertalanffy Center for the Study of Systems Science (2020). Title of the entry. In Charles François (Ed.), International Encyclopedia of Systems and Cybernetics (2). Retrieved from www.systemspedia.org/[full/url]
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