Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Entanglement Distribution in Multi-Platform Buffered-Router-Assisted
  Frequency-Multiplexed Automated Repeater Chains   Realization of a globe-spanning quantum network is a current worldwide goal,
where near and long term implementations will benefit from connectivity between
platforms optimized for specific tasks. Towards this goal, a quantum network
architecture is herewith proposed whereby quantum processing devices based on
NV$^-$ colour centers act as quantum routers and, between which, long-distance
entanglement distribution is enabled by spectrally-multiplexed quantum
repeaters based on absorptive quantum memories in rare-earth ion-doped crystals
and imperfect entangled photon-pair sources. The inclusion of a quantum buffer
structure between repeaters and routers is shown to, albeit the increased
complexity, improve the achievable entanglement distribution rates in the
network. Although the expected rate and fidelity results are presented for a
simple linear network (point-to-point), complex topologies are compatible with
the proposed architecture through the inclusion of an extra layer of temporal
multiplexing in the quantum router's operation. Figures of merit are extracted
based on parameters found in the literature for near-term scenarios and attest
the availability of the proposed buffered-router-assisted frequency-multiplexed
automated repeater chain network.

3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
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The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph
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The categories of this paper are: stat
28
The categories of this paper are: alg-geom
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The categories of this paper are: q-fin
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The categories of this paper are: math
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The categories of this paper are: gr-qc