Hubbard bands, Mott transition and deconfinement in strongly correlated systems
| Autor: | Irkhin, V. Yu. |
|---|---|
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | JETP Letters 117, 48 (2023) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1134/S002136402260269X |
| Popis: | The problem of deconfinement phases in strongly correlated systems is discussed. In space-time dimension $d=3+1$, a competition of confinement and Coulomb phases occurs, but in $d=2+1$ the confining phase dominates owing to monopole proliferation, but gapless fermion excitations can change the situation. Combining the Kotliar-Ruckenstein representation and fractionalized spin-liquid deconfinement picture, the Mott transition and Hubbard subbands are treated, general expressions in the case of an arbitrary bare band spectrum being obtained. The transition into a metallic state is determined by condensation of a gapless boson mode. The spectrum picture in the insulating state is considerably influenced by the spinon spin-liquid spectrum and hidden Fermi surface. Comment: 5 pages |
| Databáze: | arXiv |
| Externí odkaz: |
|