Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Superluminal Travel, UV/IR Mixing and Turbulence in the Lineland   We study renormalizable Lorentz invariant stable quantum field theories in
two space-time dimensions with instantaneous causal structure (causal ordering
induced by the light "cone" time ordering). These models provide a candidate
UV-completion of the two-dimensional ghost condensate. They exhibit a peculiar
UV/IR mixing - energies of all excitations become arbitrarily small at high
spatial momenta. We discuss several phenomena associated with this mixing.
These include the impossibility to reach a thermal equilibrium and
metastability of all excitations towards decay into short wavelength modes
resulting in an indefinite turbulent cascade. In spite of the UV/IR mixing in
many cases the UV physics can still be decoupled from low energy phenomena.
However, a patient observer in the Lineland is able to produce arbitrarily
heavy particles simply by waiting for a long enough time.

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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: comp-gas
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The categories of this paper are: bayes-an
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The categories of this paper are: atom-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: adap-org
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The categories of this paper are: q-bio
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The categories of this paper are: nucl-th
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The categories of this paper are: mtrl-th
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The categories of this paper are: chem-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: q-fin
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The categories of this paper are: hep-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: eess