What does quantum theory mean?

Consider a system of N particles, described by a wavefunction w(r1, r 2, ... , rN ). In every unit of time there is a probability N jT, where Tis a suitable chosen free parameter, that the wavefunction has jumped to a new wavefunction w'' given by

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where Q is defined by

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The wavefunction changes with time only and always in accordance with the Schrodinger equation.