Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Integrable semi-discretization of the massive Thirring system in
  laboratory coordinates   Several integrable semi-discretizations are known in the literature for the
massive Thirring system in characteristic coordinates. We present for the first
time an integrable semi-discretization of the massive Thirring system in
laboratory coordinates. Our approach relies on the relation between the
continuous massive Thirring system and the Ablowitz-Ladik lattice. The Backlund
transformation for solutions to the Ablowitz-Ladik lattice and the time
evolution of the massive Thirring system in laboratory coordinates are combined
together in the derivation of the Lax system for the integrable
semi-discretization of the massive Thirring system.

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The categories of this paper are: physics
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The categories of this paper are: alg-geom
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The categories of this paper are: solv-int
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The categories of this paper are: atom-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: eess
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The categories of this paper are: acc-phys
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-ex
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The categories of this paper are: q-fin
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The categories of this paper are: chem-ph
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The categories of this paper are: supr-con
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-bio
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The categories of this paper are: hep-th
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The categories of this paper are: plasm-ph