Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Entanglement manipulation via dynamics in multiple quantum spin systems   We study manipulation of entanglement between two identical networks of
quantum mechanical particles. Firstly, we reduce the problem of entanglement
transfer to the problem of quantum state transfer. Then, we consider
entanglement concentration and purification based on free dynamics on the
networks and local measurements on the vertices. By introducing an appropriate
measure of efficiency, we characterize the performance of the protocol. We give
evidence that such a measure does not depend on the network topology, and we
estimate the contribution given by the number of entangled pairs initially
shared by the two networks.

36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
18
The categories of this paper are: econ
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an