Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Two-dimensional topological order of kinetically constrained quantum
  particles   We investigate how imposing kinetic restrictions on quantum particles that
would otherwise hop freely on a two-dimensional lattice can lead to
topologically ordered states. The kinetically constrained models introduced
here are derived as a generalization of strongly interacting particle systems
in which hoppings are given by flux-lattice Hamiltonians and may be relevant to
optically driven cold-atom systems. After introducing a broad class of models,
we focus on particular realizations and show numerically that they exhibit
topological order, as witnessed by topological ground-state degeneracies and
the quantization of corresponding invariants. These results demonstrate that
the correlations responsible for fractional quantum Hall states in lattices can
arise in models involving terms other than density-density interactions.

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The categories of this paper are: gr-qc
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The categories of this paper are: hep-lat
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The categories of this paper are: nlin
19
The categories of this paper are: eess
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The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph
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The categories of this paper are: q-alg
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The categories of this paper are: math-ph
25
The categories of this paper are: patt-sol
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The categories of this paper are: q-fin
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The categories of this paper are: hep-th
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The categories of this paper are: chao-dyn
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The categories of this paper are: adap-org
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The categories of this paper are: bayes-an
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The categories of this paper are: supr-con
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The categories of this paper are: hep-ex