no code implementations • 24 May 2017 • Ryui Kaneko, Luca F. Tocchio, Roser Valentí, Federico Becca
Motivated by recent experimental suggestions of charge-order-driven ferroelectricity in organic charge-transfer salts, such as $\kappa$-(BEDT-TTF)$_2$Cu[N(CN)$_2$]Cl, we investigate magnetic and charge-ordered phases that emerge in an extended two-orbital Hubbard model on the anisotropic triangular lattice at $3/4$ filling.
Strongly Correlated Electrons Materials Science
1 code implementation • 29 Oct 2015 • Ryui Kaneko, Luca F. Tocchio, Roser Valentí, Federico Becca, Claudius Gros
We show that Jastrow-Slater wave functions, in which a density-density Jastrow factor is applied onto an uncorrelated fermionic state, may possess long-range order even when all symmetries are preserved in the wave function.
Strongly Correlated Electrons
no code implementations • 29 May 2009 • Federico Becca, Luca Capriotti, Alberto Parola, Sandro Sorella
Variational wave functions containing electronic pairing and suppressed charge fluctuations (i. e., projected BCS states) have been proposed as the paradigm for disordered magnetic systems (including spin liquids).
Strongly Correlated Electrons
