102 citations · 994 across the 31 of their papers we have counts for
31 papers
Altermagnetism on the Shastry-Sutherland lattice
Francesco Ferrari, Roser Valenti
Motivated by recent developments on altermagnetism, we investigate the Hubbard model on the Shastry-Sutherland lattice, where the onsite repulsion between electrons induces the ons…
Insulating and metallic phases in the one-dimensional Hubbard-Su-Schrieffer-Heeger model: Insights from a backflow-inspired variational wave function
Davide Piccioni, Francesco Ferrari, Michele Fabrizio +1
The interplay between electron-electron and electron-phonon interactions is studied in a one-dimensional lattice model, by means of a variational Monte Carlo method based on genera…
Candidate quantum spin liquids on the maple-leaf lattice
Jonas Sonnenschein, Atanu Maity, Chunxiao Liu +3
Motivated by recent numerical studies reporting putative quantum paramagnetic behavior in spin- Heisenberg models on the maple-leaf lattice, we classify Abrikosov fermion mean…
Spin-phonon interactions on the kagome lattice: Dirac spin liquid versus valence-bond solids
Francesco Ferrari, Federico Becca, Roser Valenti
We investigate the impact of the spin-phonon coupling on the S=1/2 Heisenberg model on the kagome lattice. For the pure spin model, there is increasing evidence that the low-energy…
Quantum spin liquids on the diamond lattice
Aishwarya Chauhan, Atanu Maity, Chunxiao Liu +3
We perform a projective symmetry group classification of spin symmetric quantum spin liquids with different gauge groups on the diamond lattice. Employing the Abrikosov fer…
Variational Benchmarks for Quantum Many-Body Problems
Dian Wu, Riccardo Rossi, Filippo Vicentini +30
The continued development of computational approaches to many-body ground-state problems in physics and chemistry calls for a consistent way to assess its overall progress. In this…
A Kitaev material on the triangular lattice: The case of NaRuO
Aleksandar Razpopov, David A. S. Kaib, Steffen Backes +5
Motivated by recent reports of a quantum disordered ground state in the triangular lattice compound NaRuO, we derive a magnetic model for this system by means…
Projective symmetry group classification of Abrikosov fermion mean-field ansätze on the square-octagon lattice
Atanu Maity, Francesco Ferrari, Ronny Thomale +2
We perform a projective symmetry group (PSG) classification of symmetric quantum spin liquids with different gauge groups on the square-octagon lattice. Employing the Abrikosov fer…
Detecting topological phases in the square-octagon lattice with statistical methods
Paul Wunderlich, Francesco Ferrari, Roser Valentí
Electronic systems living on Archimedean lattices such as kagome and square-octagon networks are presently being intensively discussed for the possible realization of topological i…
Static and dynamical signatures of Dzyaloshinskii-Moriya interactions in the Heisenberg model on the kagome lattice
Francesco Ferrari, Sen Niu, Juraj Hasik +3
Motivated by recent experiments on CsCuSnF and YCu(OH)Cl, we consider the Heisenberg model on the kagome lattice with nearest-neighbor su…
Pinch-points to half-moons and up in the stars: the kagome skymap
Dominik Kiese, Francesco Ferrari, Nikita Astrakhantsev +9
Pinch point singularities, associated with flat band magnetic excitations, are tell-tale signatures of Coulomb spin liquids. While their properties in the presence of quantum fluct…
Charge-density waves in kagome-lattice extended Hubbard models at the van Hove filling
Francesco Ferrari, Federico Becca, Roser Valentí
The Hubbard model on the kagome lattice is presently often considered as a minimal model to describe the rich low-temperature behavior of AVSb compounds (with A=K, Rb,…
Accuracy of Restricted Boltzmann Machines for the one-dimensional Heisenberg model
Luciano Loris Viteritti, Francesco Ferrari, Federico Becca
Neural networks have been recently proposed as variational wave functions for quantum many-body systems [G. Carleo and M. Troyer, Science 355, 602 (2017)]. In this work, we focus o…
Pinwheel valence-bond-crystal ground state of the spin- Heisenberg antiferromagnet on the lattice
Nikita Astrakhantsev, Francesco Ferrari, Nils Niggemann +9
We investigate the nature of the ground-state of the spin- Heisenberg antiferromagnet on the lattice by complementary state-of-the-art numerical techniques,…
Dimerization tendencies of the pyrochlore Heisenberg antiferromagnet: A functional renormalization group perspective
Max Hering, Vincent Noculak, Francesco Ferrari +2
We investigate the ground state properties of the spin- pyrochlore Heisenberg antiferromagnet using pseudofermion functional renormalization group techniques. The first part o…
Statistical learning of engineered topological phases in the kagome superlattice of AVSb
Thomas Mertz, Paul Wunderlich, Shinibali Bhattacharyya +2
Recent experimental findings have reported the presence of unconventional charge orders in the enlarged () unit-cell of kagome metals AVSb (A=K,Rb,Cs) and hinte…
Gutzwiller-projected states for the - Heisenberg model on the kagome lattice: achievements and pitfalls
Yasir Iqbal, Francesco Ferrari, Aishwarya Chauhan +3
We assess the ground-state phase diagram of the - Heisenberg model on the kagome lattice by employing Gutzwiller-projected fermionic wave functions. Within this framework…
Novel strategies of Ensemble Model Output Statistics (EMOS) for calibrating wind speed/power forecasts
Gabriele Casciaro, Francesco Ferrari, Mattia Cavaiola +1
The issue of the accuracy of wind speed/power forecasts is becoming more and more important as wind power production continues to increase year after year. Having accurate forecast…
Phase diagram of a distorted kagome antiferromagnet and application to Y-kapellasite
Max Hering, Francesco Ferrari, Aleksandar Razpopov +4
We investigate the magnetism of a previously unexplored distorted spin-1/2 kagome model consisting of three symmetry-inequivalent nearest-neighbor antiferromagnetic Heisenberg coup…
Effects of spin-phonon coupling in frustrated Heisenberg models
Francesco Ferrari, Roser Valenti, Federico Becca
The existence and stability of spin-liquid phases represent a central topic in the field of frustrated magnetism. While a few examples of spin-liquid ground states are well establi…
Gapless spin liquids in disguise
Francesco Ferrari, Alberto Parola, Federico Becca
We show that gapless spin liquids, which are potential candidates to describe the ground state of frustrated Heisenberg models in two dimensions, become trivial insulators on cylin…
Towards a Topological Quantum Chemistry description of correlated systems: the case of the Hubbard diamond chain
Mikel Iraola, Niclas Heinsdorf, Apoorv Tiwari +9
The recently introduced topological quantum chemistry (TQC) framework has provided a description of universal topological properties of all possible band insulators in all space gr…
Variational wave functions for the spin-Peierls transition in the Su-Schrieffer-Heeger model with quantum phonons
Francesco Ferrari, Roser Valenti, Federico Becca
We introduce variational wave functions to evaluate the ground-state properties of spin-phonon coupled systems described by the Su-Schrieffer-Heeger model. Quantum spins and phonon…
Gapless spin liquid and valence-bond solid in the Heisenberg model on the square lattice: insights from singlet and triplet excitations
Francesco Ferrari, Federico Becca
The spin- Heisenberg model on the square lattice represents one of the simplest examples in which the effets of magnetic interactions may suppress magnetic order, ev…