156 citations · 2.3k across the 65 of their papers we have counts for
25 papers · 1 filter
Majorana Zero Modes in Fermionic Wires coupled by Aharonov-Bohm Cages
Niklas Tausendpfund, Sebastian Diehl, Matteo Rizzi
We devise a number-conserving scheme for the realization of Majorana Zero Modes in an interacting fermionic ladder coupled by Aharonov-Bohm cages. The latter provide an efficient m…
Phase Diagram Detection via Gaussian Fitting of Number Probability Distribution
Daniele Contessi, Alessio Recati, Matteo Rizzi
We investigate the number probability density function that characterizes sub-portions of a quantum many-body system with globally conserved number of particles. We put forward a l…
Cold atoms meet lattice gauge theory
Monika Aidelsburger, Luca Barbiero, Alejandro Bermudez +19
The central idea of this review is to consider quantum field theory models relevant for particle physics and replace the fermionic matter in these models by a bosonic one. This is…
Exploring helical phases of matter in bosonic ladders
Andreas Haller, Apollonas S. Matsoukas-Roubeas, Yueting Pan +2
Ladder models of ultracold atoms offer a versatile platform for the experimental and theoretical study of different phenomena and phases of matter linked to the interplay between a…
Collisionless drag for a one-dimensional two-component Bose-Hubbard model
Daniele Contessi, Donato Romito, Matteo Rizzi +1
We theoretically investigate the elusive Andreev-Bashkin collisionless drag for a two-component onedimensional Bose-Hubbard model on a ring. By means of tensor network algorithms,…
Detecting topology through dynamics in interacting fermionic wires
Andreas Haller, Pietro Massignan, Matteo Rizzi
We describe a protocol to read out the topological invariant of interacting 1D chiral models, based on measuring the mean chiral displacement of time-evolving bulk excitations. We…
Drude weight increase by orbital and repulsive interactions in fermionic ladders
Andreas Haller, Matteo Rizzi, Michele Filippone
In strictly one-dimensional systems, repulsive interactions tend to reduce particle mobility on a lattice. Therefore, the Drude weight, controlling the divergence at zero-frequency…
Charge and statistics of lattice quasiholes from density measurements: a Tree Tensor Network study
Elia Macaluso, Tommaso Comparin, Rifat Onur Umucalılar +4
We numerically investigate the properties of the quasihole excitations above the bosonic fractional Chern insulator state at filling , in the specific case of the Harper-Ho…
Renormalization group flows for Wilson-Hubbard matter and the topological Hamiltonian
E. Tirrito, M. Rizzi, G. Sierra +2
Understanding the robustness of topological phases of matter in the presence of interactions poses a difficult challenge in modern condensed matter, showing interesting connections…
Topological Devil's staircase in atomic two-leg ladders
S. Barbarino, D. Rossini, M. Rizzi +3
We show that a hierarchy of topological phases in one dimension -- a topological Devil's staircase -- can emerge at fractional filling fractions in interacting systems, whose singl…
Gross-Neveu-Wilson model and correlated symmetry-protected topological phases
A. Bermudez, E. Tirrito, M. Rizzi +2
We show that a Wilson-type discretization of the Gross-Neveu model, a fermionic N-flavor quantum field theory displaying asymptotic freedom and chiral symmetry breaking, can serve…
The Rhombi-Chain Bose-Hubbard Model: geometric frustration and interactions
Christine Cartwright, Gabriele De Chiara, Matteo Rizzi
We explore the effects of geometric frustration within a one-dimensional Bose-Hubbard model using a chain of rhombi subject to a magnetic flux. The competition of tunnelling, self-…
Tan's contact scaling behaviour for trapped Lieb-Liniger bosons: from two to many
Matteo Rizzi, Christian Miniatura, Anna Minguzzi +1
We show that the contact parameter of N harmonically-trapped interacting 1D bosons at zero temperature can be analytically and accurately obtained by a simple rescaling of the exac…
Strongly correlated one-dimensional Bose-Fermi quantum mixtures: symmetry and correlations
Jean Decamp, Johannes Juenemann, Mathias Albert +3
We consider multi-component quantum mixtures (bosonic, fermionic, or mixed) with strongly repulsive contact interactions in a one-dimensional harmonic trap. In the limit of infinit…
Tuning the Drude weight of Dirac-Weyl fermions in one-dimensional ring traps
Manon Bischoff, Johannes Jünemann, Marco Polini +1
We study the response to an applied flux of an interacting system of Dirac-Weyl fermions confined in a one-dimensional (1D) ring. Combining analytical calculations with density-mat…
Strong coupling phases of the spin-orbit-coupled spin-1 Bose-Hubbard chain: odd integer Mott lobes and helical magnetic phases
J. H. Pixley, William S. Cole, I. B. Spielman +2
We study the odd integer filled Mott phases of a spin-1 Bose-Hubbard chain and determine their fate in the presence of a Raman induced spin-orbit coupling which has been achieved i…
Fractional quantum Hall effect in the interacting Hofstadter model via tensor networks
Matthias Gerster, Matteo Rizzi, Pietro Silvi +2
We show via tensor network methods that the Harper-Hofstadter Hamiltonian for hard-core bosons on a square geometry supports a topological phase realizing the fractional qu…
Exploring Interacting Topological Insulators with Ultracold Atoms: the Synthetic Creutz-Hubbard Model
J. Jünemann, A. Piga, S. -J. Ran +3
Understanding the robustness of topological phases of matter in the presence of strong interactions, and synthesising novel strongly-correlated topological materials, lie among the…
Phases of Attractive Fermi Gases in Synthetic Dimensions
Sudeep Kumar Ghosh, Sebastian Greschner, Umesh K. Yadav +3
A novel way to produce quantum Hall ribbons in a cold atomic system is to use M hyperfine states of atoms in a 1D optical lattice to mimic an additional "synthetic dimension". A no…
High-momentum tails as magnetic structure probes for strongly-correlated fermionic mixtures in one-dimensional traps
Jean Decamp, Johannes Jünemann, Mathias Albert +3
A universal decay of the large-momentum tails of the momentum distribution, fixed by Tan's contact coefficients, constitutes a direct signature of strong correlations in a…
Coherent superposition of current flows in an Atomtronic Quantum Interference Device
Davit Aghamalyan, Marco Cominotti, Matteo Rizzi +5
We consider a correlated Bose gas tightly confined into a ring shaped lattice, in the presence of an artificial gauge potential inducing a persistent current through it. A weak lin…
Optimal scaling of persistent currents for interacting bosons on a ring
Marco Cominotti, Matteo Rizzi, Davide Rossini +5
We consider the persistent currents induced by an artificial gauge field applied to interacting ultra-cold bosonic atoms in a tight ring trap. Using both analytical and numerical m…
Optimal Persistent Currents for Interacting Bosons on a Ring with a Gauge Field
Marco Cominotti, Davide Rossini, Matteo Rizzi +2
We study persistent currents for interacting one-dimensional bosons on a tight ring trap, subjected to a rotating barrier potential, which induces an artificial U(1) gauge field. W…
An Optical-Lattice-Based Quantum Simulator For Relativistic Field Theories and Topological Insulators
Leonardo Mazza, Alejandro Bermudez, Nathan Goldman +3
We present a proposal for a versatile cold-atom-based quantum simulator of relativistic fermionic theories and topological insulators in arbitrary dimensions. The setup consists of…