Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Toy Model of Interlayer Pair Hopping   We extend the correlated electron model of Baskaran [Mod. Phys. Lett. {\bf
B5}, 643(1991)] to the case of coupled layers. We show that the nature of the
non-Fermi liquid ground state leads to the absence of electron-like
quasiparticles at the Fermi surface, thereby suppressing coherent transport of
electrons between the coupled layers (``confinement''). On the other hand,
motion of singlet pairs between the layers is not blocked. We also discuss how
pair tunneling can be used to construct a superconducting ground state.

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The categories of this paper are: mtrl-th
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The categories of this paper are: q-fin
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The categories of this paper are: quant-ph
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The categories of this paper are: eess
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The categories of this paper are: supr-con
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-ex
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The categories of this paper are: nlin
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The categories of this paper are: stat
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The categories of this paper are: bayes-an
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The categories of this paper are: acc-phys
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The categories of this paper are: gr-qc
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The categories of this paper are: q-alg
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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-th
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The categories of this paper are: astro-ph