Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A New Interpretation for Orthofermions   In this article we introduce a simple physical model which realizes the
algebra of orthofermions. The model is constructed from a cylinder which can be
filled with some balls. The creation and annihilation operators of
orthofermions are related to the creation and annihilation operators of balls
in certain positions in the cylinder. Relationship between this model and
topological symmetries in quantum mechanics is investigated.

21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
28
The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg