Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Long-lived entanglement generation of nuclear spins using coherent light   Nuclear spins of noble-gas atoms are exceptionally isolated from the
environment and can maintain their quantum properties for hours at room
temperature. Here we develop a mechanism for entangling two such distant
macroscopic ensembles by using coherent light input. The interaction between
the light and the noble-gas spins in each ensemble is mediated by spin-exchange
collisions with alkali-metal spins, which are only virtually excited. The
relevant conditions for experimental realizations with ^{3}\text{He} or
^{129}\text{Xe} are outlined.

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The categories of this paper are: acc-phys
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
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The categories of this paper are: eess
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The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
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The categories of this paper are: solv-int
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The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom