Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Implementing the Three-Stage Quantum Cryptography Protocol   We present simple implementations of Kak's three-stage quantum cryptography
protocol. The case where the transformation is applied to more than one qubit
at the same time is also considered.

33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph