Stabilization of Hubbard-Thouless pumps through nonlocal fermionic repulsion

J Argüello-Luengo, MJ Mark, F Ferlaino… - Quantum, 2024 - quantum-journal.org
Thouless pumping represents a powerful concept to probe quantized topological invariants
in quantum systems. We explore this mechanism in a generalized Rice-Mele Fermi-Hubbard …

Revealing the topological nature of the bond order wave in a strongly correlated quantum system

S Julià-Farré, D González-Cuadra, A Patscheider… - Physical Review …, 2022 - APS
We investigate the topological properties of the bond order wave phase arising in the
extended Fermi-Hubbard model. In particular, we uncover a topological sector, which …

Probing spontaneously symmetry-broken phases with spin-charge separation through noise correlation measurements

K Gallego-Lizarribar, S Julià-Farré, M Lewenstein… - Physical Review …, 2024 - APS
Spontaneously symmetry-broken (SSB) phases are locally ordered states of matter
characterizing a large variety of physical systems. Because of their specific ordering, their …

Bond order via cavity-mediated interactions

T Chanda, R Kraus, J Zakrzewski, G Morigi - Physical Review B, 2022 - APS
We numerically study the phase diagram of bosons tightly trapped in the lowest band of an
optical lattice and dispersively coupled to a single-mode cavity field. The dynamics is …

Bond order via light-induced synthetic many-body interactions of ultracold atoms in optical lattices

SF Caballero-Benitez, IB Mekhov - New Journal of Physics, 2016 - iopscience.iop.org
We show how bond order emerges due to light mediated synthetic interactions in ultracold
atoms in optical lattices in an optical cavity. This is a consequence of the competition …

Hidden magnetism in periodically modulated one dimensional dipolar fermions

S Fazzini, A Montorsi, M Roncaglia… - New Journal of …, 2017 - iopscience.iop.org
The experimental realization of time-dependent ultracold lattice systems has paved the way
towards the implementation of new Hubbard-like Hamiltonians. We show that in a one …

Non-local order parameters as a probe for phase transitions in the extended Fermi-Hubbard model

L Barbiero, S Fazzini, A Montorsi - The European Physical Journal Special …, 2017 - Springer
Abstract The Extended Fermi-Hubbard model is a rather studied Hamiltonian due to both its
many applications and a rich phase diagram. Here we prove that all the phase transitions …

Low energy quantum regimes of 1D dipolar Hubbard model with correlated hopping

S Fazzini, L Barbiero, A Montorsi - Journal of Physics …, 2017 - iopscience.iop.org
We apply the bosonization technique to derive the phase diagram of a balanced unit density
two-component dipolar Fermi gas in a one dimensional lattice geometry. The considered …

Non-local orders in Hubbard-like low dimensional systems

S Fazzini - 2018 - tesidottorato.depositolegale.it
This PhD thesis is devoted to explore non-local orders in low-dimensional Hubbard-like
systems. This kind of systems plays a crucial role in condensed matter physics. They were …

Controlling interactions in quantum materials: from a microscopic description to quantum simulation

S Julià Farré - 2022 - upcommons.upc.edu
The last decades have witnessed impressive technical advances in all the fields of quantum
science, including solid-state systems or atomic, molecular, and optical physics, allowing …