Quantum theory of measurement

a non-quantum mechanical approach

Gen-Ichiro Nagasaka

pp. 145-158

in: Robert S. Cohen, Mark W. Wartofsky (eds), Physical sciences and history of physics, Berlin, Springer, 1984

Abstract

If a measurement of the observabl is made upon a system which is one of the eigenstates of the observable, then it will give as result the corresponding eigenvalue, and the state of the system will unaltered by the measurement; and