Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum Clone and States Estimation for n-state System   We derive a lower bound for the optimal fidelity for deterministic cloning a
set of n pure states. In connection with states estimation, we obtain a lower
bound about average maximum correct states estimation probability.

17
The categories of this paper are: q-fin
23
The categories of this paper are: solv-int
6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
24
The categories of this paper are: dg-ga