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[3. Schrödinger equations.]
Second Schrödinger equation.
The second Schrödinger equation describes the time dependence of Ψ (q):
.
where E_{op} is the quantum operator for the energy.
If Ψ (q) is known at a given time, then Ψ (q) can
be calculated at every time in the future and in the past, by means of the second Schrödinger
equation. Thus, in the state S, the probability of every physical quantity is determined
in every time.
