A Toy Model of Interlayer Pair Hopping

Details A Toy Model of Interlayer Pair Hopping A Toy Model of Interlayer Pair Hopping

1994-03-22

arxiv.org/abs/cond-mat/9403078v1

Physics

Condensed Matter

Revtex (ver. 2), 10 pages (email: baskaran@imsc.ernet.in) - IMSc/94/13

Scientific paper

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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