Abstract
The derivation of the statistical nature of the quantum mechanical wave function is presented within the formalism of quantum mechanics and the second quantization. The statistical wave function may be derived for non relativistic bosons, non relativistic fermions, and relativistic bosons by employing the commuting field operator \(\hat{\psi}(x)\) . For relativistic electrons a strictly anticommuting \(\hat{\psi}(x)\) must be employed to derive the statistical wave function (spinor). The discussion at the end of the paper aims to show the physical plausibility of a statistical wave function.
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Ali, A.H. The Ensemble Quantum State of a Single Particle. Int J Theor Phys 48, 194–212 (2009). https://doi.org/10.1007/s10773-008-9795-x
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DOI: https://doi.org/10.1007/s10773-008-9795-x