Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Intersublattice entanglement entropy as an extensive property in
  antiferromagnets   Recent advancements in our understanding of ordered magnets call for a
quantification of their entanglement content on an equal footing with classical
thermodynamic quantities, such as the total magnetic moment. We evaluate the
entanglement entropy (EE) between the two sublattices of a bipartite ordered
antiferromagnet finding it to scale with volume. Thus, the EE density becomes
an intensive property and is evaluated to be a universal
dimensionality-dependent constant when exchange is the dominant interaction.
Our analytic results are validated against the DMRG-based analysis of a
one-dimensional (1D) system, finding good agreement. Further, our evaluated EE
per bond provides a useful shortcut towards obtaining the central-cut EE in 1D,
and the area law in higher-dimensional magnets.

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The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
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The categories of this paper are: hep-lat
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The categories of this paper are: hep-ex
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
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The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
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The categories of this paper are: chao-dyn
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The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
18
The categories of this paper are: econ