Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Revisiting the Schrodinger probability current   We revisit the definition of the probability current for the Schrodinger
equation. First, we prove that the Dirac probability currents of stationary
wave functions of the hydrogen atom and of the isotrop harmonic oscillator are
not nil and correspond to a circular rotation of the probability. Then, we
recall how it is necessary to add to classical Pauli and Schrodinger currents,
an additional spin-dependant current, the Gordan current. Consequently, we get
a circular probability current in the Schrodinger approximation for the
hydrogen atom and the isotrop harmonic oscillator.

27
The categories of this paper are: comp-gas
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The categories of this paper are: solv-int
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The categories of this paper are: eess
17
The categories of this paper are: q-fin
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat
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The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex