374 citations · 1.9k across the 27 of their papers we have counts for
27 papers
Mutual friction and vortex Hall angle in a strongly interacting Fermi superfluid
Nicola Grani, Diego Hernández-Rajkov, Cyprien Daix +8
The motion of a quantized vortex is intimately connected with its microscopic structure and the elementary excitations of the surrounding fluid. In this work, we investigate the tw…
Stabilizing persistent currents in an atomtronic Josephson junction necklace
Luca Pezzè, Klejdja Xhani, Cyprien Daix +7
Arrays of Josephson junctions are at the forefront of research on quantum circuitry for quantum computing, simulation and metrology. They provide a testing bed for exploring a vari…
Decay of persistent currents in annular atomic superfluids
Klejdja Xhani, Giulia Del Pace, Francesco Scazza +1
We investigate the role of vortices in the decay of persistent current states of annular atomic superfluids by solving numerically the Gross-Pitaevskii equation, and we directly co…
Practical quantum secure direct communication with squeezed states
Iris Paparelle, Faezeh Mousavi, Francesco Scazza +3
Quantum secure direct communication (QSDC) is a rapidly developing quantum communication approach, where secure information is directly transmitted, providing an alternative to key…
Connecting shear-flow and vortex array instabilities in annular atomic superfluids
D. Hernandez-Rajkov, N. Grani, F. Scazza +8
At the interface between two fluid layers in relative motion, infinitesimal fluctuations can be exponentially amplified, inducing vorticity and the breakdown of the laminar flow. T…
Repulsive Fermi and Bose Polarons in Quantum Gases
Francesco Scazza, Matteo Zaccanti, Pietro Massignan +2
Polaron quasiparticles are formed when a mobile impurity is coupled to the elementary excitations of a many-particle background. In the field of ultracold atoms, the study of the a…
Imprinting persistent currents in tunable fermionic rings
G. Del Pace, K. Xhani, A. Muzi Falconi +7
Persistent currents in annular geometries have played an important role in disclosing the quantum phase coherence of superconductors and mesoscopic electronic systems. Ultracold at…
Deploying an inter-European quantum network
Domenico Ribezzo, Mujtaba Zahidy, Ilaria Vagniluca +19
Around forty years have passed since the first pioneering works have introduced the possibility of using quantum physics to strongly enhance communications safety. Nowadays Quantum…
Sound emission and annihilations in a programmable quantum vortex collider
W. J. Kwon, G. Del Pace, K. Xhani +5
In quantum fluids, the quantisation of circulation forbids the diffusion of a vortex swirling flow seen in classical viscous fluids. Yet, a quantum vortex accelerating in a superfl…
Quantum simulating the electron transport in quantum cascade laser structures
Andrea Trombettoni, Francesco Scazza, Francesco Minardi +5
We propose to use ultracold fermionic atoms in one-dimensional optical lattices to quantum simulate the electronic transport in quantum cascade laser (QCL) structures. The competit…
An efficient high-current circuit for fast radio-frequency spectroscopy in cold atomic gases
F. Scazza, G. Del Pace, L. Pieri +3
We design and implement a low-impedance, high-current radio-frequency (RF) circuit, enabling fast coherent coupling between magnetic levels in cold alkali atomic samples. It is bas…
Tunneling transport of unitary fermions across the superfluid transition
G. Del Pace, W. J. Kwon, M. Zaccanti +2
We investigate the transport of a Fermi gas with unitarity-limited interactions across the superfluid phase transition, probing its response to a direct current (dc) drive through…
Roadmap on Atomtronics: State of the art and perspective
L. Amico, M. Boshier, G. Birkl +56
Atomtronics deals with matter-wave circuits of ultra-cold atoms manipulated through magnetic or laser-generated guides with different shapes and intensities. In this way, new types…
Quasiparticle lifetime of the repulsive Fermi polaron
Haydn S. Adlong, Weizhe Edward Liu, Francesco Scazza +5
We investigate the metastable repulsive branch of a mobile impurity coupled to a degenerate Fermi gas via short-range interactions. We show that the quasiparticle lifetime of this…
Exploring emergent heterogeneous phases in strongly repulsive Fermi gases
F. Scazza, G. Valtolina, A. Amico +5
Recent experiments have revitalized the interest in a Fermi gas of ultracold atoms with strong repulsive interactions. In spite of its seeming simplicity, this system exhibits a co…
Strongly correlated superfluid order parameters from dc Josephson supercurrents
W. J. Kwon, G. Del Pace, R. Panza +5
The dc Josephson effect provides a powerful phase-sensitive tool for investigating superfluid order parameters. We report on the observation of dc Josephson supercurrents in strong…
Critical transport and vortex dynamics in a thin atomic Josephson junction
K. Xhani, E. Neri, L. Galantucci +9
We study the onset of dissipation in an atomic Josephson junction between Fermi superfluids in the molecular Bose-Einstein condensation limit of strong attraction. Our simulations…
Coherent and dissipative transport in a Josephson junction between fermionic superfluids of Li atoms
E. Neri, F. Scazza, G. Roati
Quantum systems out of equilibrium offer the possibility of understanding intriguing and challenging problems in modern physics. Studying transport properties is not only valuable…
Fast and scalable quantum information processing with two-electron atoms in optical tweezer arrays
G. Pagano, F. Scazza, M. Foss-Feig
Atomic systems, ranging from trapped ions to ultracold and Rydberg atoms, offer unprecedented control over both internal and external degrees of freedom at the single-particle leve…
Time-resolved observation of competing attractive and repulsive short-range correlations in strongly interacting Fermi gases
A. Amico, F. Scazza, G. Valtolina +5
We exploit a time-resolved pump-probe spectroscopic technique to study the out-of-equilibrium dynamics of an ultracold two-component Fermi gas, selectively quenched to strong repul…
Connecting dissipation and phase slips in a Josephson junction between fermionic superfluids
A. Burchianti, F. Scazza, A. Amico +6
We study the emergence of dissipation in an atomic Josephson junction between weakly-coupled superfluid Fermi gases. We find that vortex-induced phase slippage is the dominant micr…
Repulsive Fermi polarons in a resonant mixture of ultracold Li atoms
F. Scazza, G. Valtolina, P. Massignan +7
We employ radio-frequency spectroscopy to investigate a polarized spin-mixture of ultracold Li atoms close to a broad Feshbach scattering resonance. Focusing on the regime of…
Exploring the ferromagnetic behaviour of a repulsive Fermi gas via spin dynamics
G. Valtolina, F. Scazza, A. Amico +6
Ferromagnetism is a manifestation of strong repulsive interactions between itinerant fermions in condensed matter. Whether short-ranged repulsion alone is sufficient to stabilize f…
Direct probing of the Mott crossover in the SU() Fermi-Hubbard model
Christian Hofrichter, Luis Riegger, Francesco Scazza +4
The Fermi-Hubbard model (FHM) is a cornerstone of modern condensed matter theory. Developed for interacting electrons in solids, which typically exhibit SU() symmetry, it descri…