Resonating-valence-bond state with fermionic charges and bosonic spins: Mean-field theory
- 1 July 1989
- journal article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 40 (1) , 850-853
- https://doi.org/10.1103/physrevb.40.850
Abstract
We consider a representation of the Hubbard model, in which the charge carriers are fermions and the spin carriers are bosons. We show that there exists a mean-field solution with a condensate of spin singlets and we characterize the low-temperature behavior of the quasiparticles. Finally, we calculate the tunneling spectrum for a normal-metal–resonating-valence-bond (RVB) state tunnel junction and suggest the tunneling experiment as a probe of the statistics of the RVB quasiparticles.Keywords
This publication has 10 references indexed in Scilit:
- Tunneling study of clean and oriented Y-Ba-Cu-O and Bi-Sr-Ca-Cu-O surfacesPhysica C: Superconductivity and its Applications, 1989
- Mean Field Theory of the Square Lattice Antiferromagnetic Heisenberg ModelJournal of the Physics Society Japan, 1989
- Electron tunneling and the energy gap inPhysical Review B, 1989
- Electron tunneling into thin films of Y1Ba2Cu3O7Zeitschrift für Physik B Condensed Matter, 1988
- Superexchange mechanism andd-wave superconductivityPhysical Review B, 1988
- Asymmetry in the normal-metal to high-superconductor tunnel junctionPhysical Review B, 1988
- Systems with resonating-valence-bond ground states: Correlations and excitationsPhysical Review B, 1988
- "Normal" Tunneling and "Normal" Transport: Diagnostics for the Resonating-Valence-Bond StatePhysical Review Letters, 1988
- Neutral fermion, charge- boson excitations in the resonating-valence-bond state and superconductivity in -based compoundsPhysical Review B, 1988
- Topology of the resonating valence-bond state: Solitons and high-superconductivityPhysical Review B, 1987