360 citations · 603 across the 14 of their papers we have counts for
14 papers
Dirac points and topological phases in correlated altermagnets
Lorenzo Del Re
We explore a two-dimensional Hubbard model adapted to host altermagnetic states. Utilizing Hartree-Fock (HF) and dynamical mean field theory (DMFT), we uncover that the magnetic so…
Two-particle self-consistent approach for broken symmetry phases
Lorenzo Del Re
Spontaneous symmetry breaking of interacting fermion systems constitutes a major challenge for many-body theory due to the proliferation of new independent scattering channels once…
Field-control of symmetry-broken and quantum disordered phases in frustrated moiré bilayers with population imbalance
Lorenzo Del Re, Laura Classen
We determine the ground states and excitation spectra of the paradigmatic four-flavour Heisenberg model with nearest- and next-nearest-neighbor exchange couplings on the triangular…
Thermodynamic Stability at the Two-Particle Level
A. Kowalski, M. Reitner, L. Del Re +6
We show how the stability conditions for a system of interacting fermions that conventionally involve variations of thermodynamic potentials can be rewritten in terms of one- and t…
Enhancement of chiral edge currents in (+1)-dimensional atomic Mott-band hybrid insulators
Matteo Ferraretto, Andrea Richaud, Lorenzo Del Re +2
We consider the effect of a local interatomic repulsion on synthetic heterostructures where a discrete synthetic dimension is created by Raman processes on top of -symmetric…
Mechanism of Superconductivity in the Hubbard Model at Intermediate Interaction Strength
Xinyang Dong, Lorenzo Del Re, Alessandro Toschi +1
We study the fluctuations responsible for pairing in the -wave superconducting state of the two-dimensional Hubbard model at intermediate coupling within a cluster dynamical mea…
Robust measurements of -point correlation functions of driven-dissipative quantum systems on a digital quantum computer
Lorenzo Del Re, Brian Rost, Michael Foss-Feig +2
We propose and demonstrate a unified hierarchical method to measure -point correlation functions that can be applied to driven, dissipative, or otherwise open or non-equilibrium…
Long-Time Error-Mitigating Simulation of Open Quantum Systems on Near Term Quantum Computers
Brian Rost, Lorenzo Del Re, Nathan Earnest +3
We study an open quantum system simulation on quantum hardware, which demonstrates robustness to hardware errors even with deep circuits containing up to two thousand entangling ga…
Flavour-selective localization in interacting lattice fermions via SU(N) symmetry breaking
Daniele Tusi, Lorenzo Franchi, Lorenzo Francesco Livi +10
A large repulsion between particles in a quantum system can lead to their localization, as it happens for the electrons in Mott insulating materials. This paradigm has recently bra…
Fluctuations analysis of the spin susceptibility: Néel ordering revisited in dynamical mean field theory
Lorenzo Del Re, Georg Rohringer
In this paper, we revisit the antiferromagnetic (AF) phase diagram of the single-band three-dimensional half-filled Hubbard model on a simple cubic lattice studied within the dynam…
Dynamical vertex approximation for the attractive Hubbard model
Lorenzo Del Re, Massimo Capone, Alessandro Toschi
In this work, we adapt the formalism of the dynamical vertex approximation (DA), a diagrammatic approach including many-body correlations beyond the dynamical mean-field theory,…
Selective insulators and anomalous responses in correlated fermions with synthetic extra dimensions
Lorenzo Del Re, Massimo Capone
We study a three-component fermionic fluid in an optical lattice in a regime of intermediate-to- strong interactions allowing for Raman processes connecting the different component…
Non-equilibrium and non-homogeneous phenomena around a first-order quantum phase transition
Lorenzo Del Re, Michele Fabrizio, Erio Tosatti
We consider non-equilibrium phenomena in a very simple model that displays a zero-temperature first-order phase transition. The quantum Ising model with a four-spin exchange is ado…
Photonic polarization gears for ultra-sensitive angular measurements
V. D'Ambrosio, N. Spagnolo, L. Del Re +7
Quantum metrology bears a great promise in enhancing measurement precision, but is unlikely to become practical in the near future. Its concepts can nevertheless inspire classical…