Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Entanglement purification protocols for all graph states   We present multiparty entanglement purification protocols that are capable of
purifying arbitrary graph states directly. We develop recurrence and breeding
protocols and compare our methods with strategies based on bipartite
entanglement purification in static and communication scenarios. We find that
direct multiparty purification is of advantage with respect to achievable
yields and minimal required fidelity in static scenarios, and with respect to
obtainable fidelity in the case of noisy operations in both scenarios.

18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
7
The categories of this paper are: hep-th
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The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
2
The categories of this paper are: math
4
The categories of this paper are: cond-mat