80 citations · 232 across the 12 of their papers we have counts for
12 papers
Electronic correlations and fluctuating lattice distortions in vanadium dioxide
Antonio Picano, Martin Eckstein, Francesco Grandi
Metal-insulator transitions in correlated materials are often accompanied by a change of crystal structure. They are commonly described within a coherent lattice approximation, whi…
Theory of nematic charge orders in kagome metals
Francesco Grandi, Armando Consiglio, Michael A. Sentef +2
Kagome metals VSb (K, Rb, Cs) exhibit an exotic charge order (CO), involving three order parameters, with broken translation and time-reversal symmetries compatible…
Stochastic semiclassical theory for non-equilibrium electron-phonon coupled systems
Antonio Picano, Francesco Grandi, Philipp Werner +1
We discuss a semiclassical approach to solve the quantum impurity model within non-equilibrium dynamical mean-field theory for electron-lattice models. The effect of electronic flu…
Inhomogeneous disordering at a photo-induced charge density wave transition
Antonio Picano, Francesco Grandi, Martin Eckstein
Using ultrashort laser pulses, it has become possible to probe the dynamics of long-range order in solids on microscopic timescales. In the conventional description of symmetry-bro…
Ultrafast control of spin-orbital separation probed with time-resolved RIXS
Aaron Müller, Francesco Grandi, Martin Eckstein
Quasi-one-dimensional systems exhibit many-body effects elusive in higher dimensions. A prime example is spin-orbital separation, which has been measured by resonant inelastic X-ra…
Ultrafast metal-to-insulator switching in a strongly correlated system
Francesco Grandi, Martin Eckstein
Light-manipulation of correlated electronic phases in solids offers the tantalizing prospect of realizing electronic devices operating at the ultrafast time-scale. In this context,…
Fluctuation control of non-thermal orbital order
Francesco Grandi, Martin Eckstein
Orbitally ordered states exhibit unique features which make them a promising platform for exploring the ultrafast dynamics of long-range order in solids: Their free energy typicall…
Ultrafast Mott transition driven by nonlinear electron-phonon interaction
Francesco Grandi, Jiajun Li, Martin Eckstein
Nonlinear phononics holds the promise for controlling properties of quantum materials on the ultrashort timescale. Using nonequilibrium dynamical mean-field theory, we solve a mode…
Unraveling the Mott-Peierls intrigue in Vanadium dioxide
Francesco Grandi, Adriano Amaricci, Michele Fabrizio
Vanadium dioxide is one of the most studied strongly correlated materials. Nonetheless, the intertwining between electronic correlation and lattice effects has precluded a comprehe…
Correlation-driven Lifshitz transition and orbital order in a two-band Hubbard model
Francesco Grandi, Adriano Amaricci, Massimo Capone +1
We study by dynamical mean field theory the ground state of a quarter-filled Hubbard model of two bands with different bandwidths. At half-filling, this model is known to display a…
Topological properties of the bond-modulated honeycomb lattice
F. Grandi, F. Manghi, O. Corradini +1
We study the combined effects of lattice deformation, e-e interaction and spin-orbit coupling in a two-dimensional (2D) honeycomb lattice. We adopt different kinds of hopping modul…
Topological invariants in interacting Quantum Spin Hall: a Cluster Perturbation Theory approach
F. Grandi, F. Manghi, O. Corradini +2
Using Cluster Perturbation Theory we calculate Green's functions, quasi-particle energies and topological invariants for interacting electrons on a 2-D honeycomb lattice, with intr…