Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generality of the concatenated five-qubit code   In this work, a quantum error correction (QEC) procedure with the
concatenated five-qubit code is used to construct a near-perfect effective
qubit channel (with a error below $10^{-5}$) from arbitrary noise channels. The
exact performance of the QEC is characterized by a Choi matrix, which can be
obtained via a simple and explicit protocol. In a noise model with five free
parameters, our numerical results indicate that the concatenated five-qubit
code is general: To construct a near-perfect effective channel from the noise
channels, the necessary size of the concatenated five-qubit code depends only
on the entanglement fidelity of the initial noise channels.

19
The categories of this paper are: eess
18
The categories of this paper are: econ
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
4
The categories of this paper are: cond-mat
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol