27 citations · 97 across the 13 of their papers we have counts for
14 papers
Cooper pair charge Kondo effect in a hybrid quantum dot - superconductor device
Luca Gonfiantini, Lorenzo Maffi, Michele Burrello
We consider a tunable hybrid device composed of four quantum dots and a floating superconducting island -- the so-called poor man's tetron -- close to its effective particle-hole s…
Trimer Dynamics in Floquet-driven arrays of Rydberg Atoms
Edoardo Tiburzi, Lorenzo Maffi, Luca Dell'Anna +1
We analyze the WAHUHA Floquet protocol recently applied to arrays of Rydberg atoms and derive beyond-leading-order corrections in the high-frequency expansion of the effective spin…
Emergent chiral Higgs mode in -flux frustrated lattices
Maria Lanaro, Lorenzo Maffi, Marco Di Liberto
Neutral-atom quantum simulators provide a powerful platform for realizing strongly correlated phases, enabling access to dynamical signatures of quasiparticles and symmetry breakin…
The poor man's Majorana tetron
Maximilian Nitsch, Lorenzo Maffi, Virgil V. Baran +4
The Majorana tetron is a prototypical topological qubit stemming from the ground state degeneracy of a superconducting island hosting four Majorana modes. This degeneracy manifests…
Majorana modes in quantum dots coupled via a floating superconducting island
R. Seoane Souto, V. V. Baran, M. Nitsch +4
Majorana modes can be engineered in arrays where quantum dots (QDs) are coupled via grounded superconductors, effectively realizing an artificial Kitaev chain. Minimal Kitaev chain…
Engineering a Josephson junction chain for the simulation of the clock model
Matteo M. Wauters, Lorenzo Maffi, Michele Burrello
The continuous improvement of fabrication techniques and high-quality semiconductor-superconductor interfaces allowed for unprecedented tunability of Josephson junction arrays (JJA…
Bosonization of 2+1 dimensional fermions on the surface of topological insulators
Andrea Cappelli, Lorenzo Maffi, Riccardo Villa
Three-dimensional topological insulators can be described by an effective field theory involving two `hydrodynamic' Abelian gauge fields. The action contains a bulk topological BF…
Quantum simulation of the tricritical Ising model in tunable Josephson junction ladders
Lorenzo Maffi, Niklas Tausendpfund, Matteo Rizzi +1
Modern hybrid superconductor-semiconductor Josephson junction arrays are a promising platform for analog quantum simulations. Their controllable and non-sinusoidal energy/phase rel…
The topological Kondo model out of equilibrium
Matteo M. Wauters, Chia-Min Chung, Lorenzo Maffi +1
The topological Kondo effect is a genuine manifestation of the nonlocality of Majorana modes. We investigate its out-of-equilibrium signatures in a model with a Cooper-pair box hos…
Simulations of the dynamics of quantum impurity problems with matrix product states
Matteo M. Wauters, Chia-Min Chung, Lorenzo Maffi +1
The Anderson impurity model is a paradigmatic example in the study of strongly correlated quantum systems and describes an interacting quantum dot coupled to electronic leads. In t…
W-infinity Symmetry in the Quantum Hall Effect Beyond the Edge
Andrea Cappelli, Lorenzo Maffi
The description of chiral quantum incompressible fluids by the W-infinity symmetry can be extended from the edge, where it encompasses the conformal field theory approach, to the n…
Quantization of a Self-dual Conformal Theory in (2+1) Dimensions
Francesco Andreucci, Andrea Cappelli, Lorenzo Maffi
Compact nonlocal Abelian gauge theory in (2+1) dimensions, also known as loop model, is a massless theory with a critical line that is explicitly covariant under duality transforma…
Critical Ising Model in Varying Dimension by Conformal Bootstrap
Andrea Cappelli, Lorenzo Maffi, Satoshi Okuda
The single-correlator conformal bootstrap is solved numerically for several values of dimension 4>d>2 using the available SDPB and Extremal Functional methods. Critical exponents a…
Bulk-Boundary Correspondence in the Quantum Hall Effect
Andrea Cappelli, Lorenzo Maffi
We present a detailed microscopic study of edge excitations for n filled Landau levels. We show that the higher-level wavefunctions possess a non-trivial radial dependence that sho…