Jastrow-correlated wave functions for flat-band lattices

Article

关键词: QUANTUM;    SYMMETRIES;    ELECTRONS;    STATES;   

DOI  :  10.1103/PhysRevB.83.245109

来源: SCIE

【 摘 要 】

The electronic band structure of many compounds, e.g., carbon-based structures, can exhibit essentially no dispersion. Models of electrons in flat-band lattices define nonperturbative strongly correlated problems by default. We construct a set of Jastrow-correlated ansatz wavefunctions to capture the low energy physics of interacting particles in flat bands. We test the ansatz in a simple Coulomb model of spinless electrons in a honeycomb ribbon. We find that the wavefunction accurately captures the ground state in a transition from a crystal to a uniform quantum liquid.

【 授权许可】

Free