(For simplicity I work in 1+1 dimensions)
In this post I show how one can define the wavefunction of a particle from its trajectory and how it's consistent with the orthodox definitions of quantum mechanical operator.
Let
$$\boxed{\psi:=x^{-i}}$$
Then $$ \frac{d\psi}{dt}=\frac{\partial\psi}{\partial t}=-ix^{-i-1}\frac{dx}{dt}=-i\frac{x^{-i}}{x}v=-i\psi \frac{v}{x},$$
but from the above definition $$\frac{v}{x}=\omega,$$
so finally
$$\frac{\partial\psi}{\partial t}=-i\psi\omega,$$
which is
$$\hat{\omega}=i\frac{\partial}{\partial t},$$
when expressed as an operator/eigenvalue problem.
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