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A Toy Model of Interlayer Pair Hopping

V. N. Muthukumar·G. Baskaran
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Abstract

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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V. N. Muthukumar, G. Baskaran. 1994-03-22. A Toy Model of Interlayer Pair Hopping. https://doi.org/10.1142/s0217984994000716

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