Search Results for author: Federico Becca

Found 3 papers, 1 papers with code

Charge orders in organic charge-transfer salts

no code implementations24 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

Spontaneous symmetry breaking in correlated wave functions

1 code implementation29 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

Variational wave functions for frustrated magnetic models

no code implementations29 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

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