Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: What quantum state really is?   To get out of logical deadlock in interpreting gedanken experiments like
Schrodinger cat, actual meaning of a wave function, or a state, in the case of
complex two-dimensional Hilbert space, is shown to represent transformations
executing by elements of even subalgebra of geometric algebra over
three-dimensional Euclidian space.

15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
32
The categories of this paper are: atom-ph