Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Half-Chain Entanglement Entropy in the One-Dimensional Spinless Fermion
  Model   We calculate the half-chain entanglement entropy of the ground state in the
one-dimensional spinless fermion model. Considering a tiny corner of the
Hilbert space represented by matrix product states, we efficiently find the
ground state by the infinite time-evolving block decimation. The Schmidt
coefficients are used to determine the half-chain entanglement entropy. Using
the bond dimension scaling of the half-chain entanglement entropy, we find the
critical region, which is consistent with the previous results.

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The categories of this paper are: patt-sol
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The categories of this paper are: funct-an
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The categories of this paper are: gr-qc
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The categories of this paper are: math-ph
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The categories of this paper are: q-fin
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The categories of this paper are: dg-ga
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The categories of this paper are: acc-phys
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The categories of this paper are: cs
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The categories of this paper are: physics
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The categories of this paper are: chem-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: comp-gas
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The categories of this paper are: q-alg
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The categories of this paper are: astro-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: solv-int