Physics – Quantum Physics
Scientific paper
2006-01-26
Physics
Quantum Physics
Continuation of development of the prequantum classical statistical model, see also: A. Yu. Khrennikov, A pre-quantum classica
Scientific paper
We develop a prequantum classical statistical model in that the role of hidden variables is played by classical (vector) fields. We call this model Prequantum Classical Statistical Field Theory (PCSFT). The correspondence between classical and quantum quantities is asymptotic, so we call our approach asymptotic dequantization. In this note we pay the main attention to interpretation of so called pure quantum states (wave functions) in PCSFT, especially stationary states. We show, see Theorem 2, that pure states of QM can be considered as labels for Gaussian measures concentrated on one dimensional complex subspaces of phase space that are invariant with respect to the Schr\"odinger dynamics. ``A quantum system in a stationary state $\psi$'' in PCSFT is nothing else than a Gaussian ensemble of classical fields (fluctuations of the vacuum field of a very small magnitude) which is not changed in the process of Schr\"odinger's evolution. We interpret in this way the problem of {\it stability of hydrogen atom.
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