Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Deconfined Metal-Insulator Transitions in Quantum Hall Bilayers   We propose that quantum Hall bilayers in the presence of a periodic potential
at the scale of the magnetic length can host examples of a Deconfined
Metal-Insulator Transition (DMIT), where a Fermi liquid (FL) metal with a
generic electronic Fermi surface evolves into a gapped insulator (or, an
insulator with Goldstone modes) through a continuous quantum phase transition.
The transition can be accessed by tuning a single parameter, and its universal
critical properties can be understood using a controlled framework. At the
transition, the two layers are effectively decoupled, where each layer
undergoes a continuous transition from a FL to a generalized composite Fermi
liquid (gCFL). The thermodynamic and transport properties of the gCFL are
similar to the usual CFL, while its spectral properties are qualitatively
different. The FL-gCFL quantum critical point hosts a sharply defined Fermi
surface without long-lived electronic quasiparticles. Immediately across the
transition, the two layers of gCFL are unstable to forming an insulating phase.
We discuss the topological properties of the insulator and various observable
signatures associated with the DMIT.

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The categories of this paper are: q-bio
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The categories of this paper are: gr-qc
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The categories of this paper are: chem-ph
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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: dg-ga
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The categories of this paper are: comp-gas
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The categories of this paper are: math
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The categories of this paper are: chao-dyn
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The categories of this paper are: nucl-th
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The categories of this paper are: plasm-ph
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The categories of this paper are: solv-int
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The categories of this paper are: astro-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-fin
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The categories of this paper are: eess