Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effective Spin-2 Quasi-particles at Linear Dispersive Five-fold
  Degenerate Points with Tunable Topological Chern Numbers   In this work, which is based on spin-2 vectors and traceless spin-2 tensors,
an effective Hamiltonian is constructed with a linearly dispersive five-fold
degenerate point with spin-2 vector-momentum couplings. For the model without
spin-2 vector-tensor coupling, the topological Chern numbers of five bands are
calculated as 4, 2, 0, -2, -4. After including spin-2 vector-tensor coupling,
separate topological Chern numbers are obtained for different couplings. A
cubic lattice of atoms with five internal states is designed to realize two
five-fold degenerate points. The Chern numbers of the bands can be changed by
tuning the coupling coefficient. In this work we propose a theoretical design
to obtain spin-2 quasi-particles.

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The categories of this paper are: chem-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: acc-phys
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The categories of this paper are: chao-dyn
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The categories of this paper are: q-fin
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The categories of this paper are: hep-ex
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The categories of this paper are: math
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The categories of this paper are: bayes-an
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The categories of this paper are: math-ph
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The categories of this paper are: q-bio
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-lat
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The categories of this paper are: ao-sci
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The categories of this paper are: hep-ph
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The categories of this paper are: solv-int
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The categories of this paper are: cmp-lg