Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generators and relations for n-qubit Clifford operators   We define a normal form for Clifford circuits, and we prove that every
Clifford operator has a unique normal form. Moreover, we present a rewrite
system by which any Clifford circuit can be reduced to normal form. This yields
a presentation of Clifford operators in terms of generators and relations.

7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
8
The categories of this paper are: hep-ex
17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph