122 citations · 886 across the 47 of their papers we have counts for
47 papers
Scanning Gate Microscopy Modulation of Supercurrent in Graphene Josephson Junctions
Ivan Villani, Samuele Fracassi, Niccolò Traverso Ziani +9
Graphene Josephson junctions represent an excellent platform for quantum technologies, thanks to the combination of high carrier mobility, ballistic transport, and large gate-tunab…
Charging Quantum Batteries via Dissipative Quenches
Riccardo Grazi, Donato Farina, Niccolò Traverso Ziani +1
We investigate work extraction in open quantum batteries composed of interacting spin chains weakly coupled to engineered environments. Focusing on two- and four-qubit XX models in…
Cluster Ising quantum batteries can mimic super-extensive charging power
Anna Pavone, Federico Luigi Cavagnaro, Matteo Carrega +3
Quantum batteries, miniaturized devices able to store and release energy on demand, are promising both because their intrinsic energy and time scales can match those of other quant…
Finite-Time Protocols Stabilize Charging in Noisy Ising Quantum Batteries
Riccardo Grazi, Henrik Johannesson, Dario Ferraro +1
Reliable charging protocols are crucial for advancing quantum batteries toward practical use. We investigate a transverse-field Ising chain as a quantum battery, focusing on the co…
Intrinsic and Tunable Superconducting Diode Effect in Quantum Spin Hall Systems
Samuele Fracassi, Simone Traverso, Stefan Heun +3
Nonreciprocal dissipationless transport has long been sought for applications in superconducting technologies. Recently, it has been implemented by the so called superconducting di…
Charging a Dimerized Quantum XY Chain
Riccardo Grazi, Fabio Cavaliere, Niccolò Traverso Ziani +1
Quantum batteries are quantum systems designed to store energy and release it on demand. The optimization of their performance is an intensively studied topic within the realm of q…
Confinement-induced Majorana modes in a nodal topological superconductor
Simone Traverso, Niccolò Traverso Ziani, Maura Sassetti +1
We investigate the topological phase diagram of {an extension of the Haldane model with equal spin pairing superconductivity}. In two dimensions, we find a topological nodal superc…
Anomalous supercurrent and diode effect in locally perturbed topological Josephson junctions
Samuele Fracassi, Simone Traverso, Niccolò Traverso Ziani +3
The simultaneous breaking of time-reversal and inversion symmetry can lead to peculiar effects in Josephson junctions, such as the anomalous Josephson effect or supercurrent rectif…
Few-body precursors of topological frustration
Federico Raffaele De Filippi, Antonio Francesco Mello, Daniel Sacco Shaikh +3
Quantum spin chains - the prototypical model for coupled two-level systems - offer a fertile playground both for fundamental and technological applications, ranging from the theory…
An exact local mapping from clock-spins to fermions
Simone Traverso, Christoph Fleckenstein, Maura Sassetti +1
Clock-spin models are attracting great interest, due to both their rich phase diagram and their connection to parafermions. In this context, we derive an exact local mapping from c…
Effects of the Vertices on the Topological Bound States in a Quasicrystalline Topological Insulator
Simone Traverso, Niccolò Traverso Ziani, Maura Sassetti
The experimental realization of twisted bilayer graphene strongly pushed the inspection of bilayer systems. In this context, it was recently shown that a two layer Haldane model wi…
Jet shapes in H/V boson + jet with clustering at hadron colliders
K. Khelifa-Kerfa, Y. Delenda, N. Ziani
We present analytical calculations of the distribution of non-global jet shapes in Higgs/vector boson + jet production at hadron colliders. Within the eikonal-limit framework and i…
Role of the edges in a quasicrystalline Haldane model
Simone Traverso, Maura Sassetti, Niccolò Traverso Ziani
We study the role of the edges in determining the features of the topological phase in a quasicrystalline higher order topological insulator. We consider a specific model consistin…
Assessing bound states in a one-dimensional topological superconductor: Majorana versus Tamm
Lucia Vigliotti, Fabio Cavaliere, Matteo Carrega +1
Majorana bound states in topological superconductors have attracted intense research activity in view of applications in topological quantum computation. However, they are not the…
Anomalous flux periodicity in proximitised quantum spin Hall constrictions
Lucia Vigliotti, Alessio Calzona, Björn Trauzettel +2
We theoretically analyse a long constriction between the helical edge states of a two-dimensional topological insulator. The constriction is laterally tunnel-coupled to two superco…
Rashba-controlled thermal valve in helical liquids
Alessio Calzona, Niccolò Traverso Ziani, Matteo Carrega +1
In the context of one-dimensional fermionic systems, helical Luttiger liquids are not only characterized by intriguing spin properties, but also by the possibility to be manipulate…
Signature of Generalized Gibbs Ensemble Deviation from Equilibrium: Negative Absorption Induced by a Local Quench
Lorenzo Rossi, Fabrizio Dolcini, Fabio Cavaliere +3
When a parameter quench is performed in an isolated quantum system with a complete set of constants of motion, its out of equilibrium dynamics is considered to be well captured by…
Backscattering off a driven Rashba impurity at the helical edge
Lorenzo Privitera, Niccolò Traverso Ziani, Inès Safi +1
The spin degree of freedom is crucial for both understanding and exploiting the particular properties of the edges of two-dimensional topological insulators. In the absence of supe…
From fractional solitons to Majorana fermions in a paradigmatic model of topological superconductivity
N. Traverso Ziani, C. Fleckenstein, L. Vigliotti +2
Majorana bound states are interesting candidates for applications in topological quantum computation. Low energy models allowing to grasp their properties are hence conceptually im…
Formation and detection of Majorana modes in quantum spin Hall trenches
C. Fleckenstein, N. Traverso Ziani, A. Calzona +2
We propose a novel realization for a topologically superconducting phase hosting Majorana zero-modes on the basis of quantum spin Hall systems. Remarkably, our proposal is complete…
Coherent charge and spin oscillations induced by local quenches in nanowires with spin-orbit coupling
F. Cavaliere, N. Traverso Ziani, F. Dolcini +2
When a local and attractive potential is quenched in a nanowire, the spectrum changes its topology from a purely continuum to a continuum and discrete portion. We show that, under…
Transport signatures of a Floquet topological transition at the helical edge
C. Fleckenstein, N. Traverso Ziani, L. Privitera +2
The manipulation of the helical edge states of two-dimensional topological insulators is crucial for the development of technological applications. Recently, an important step forw…
Interacting topological edge channels
Jonas Strunz, Jonas Wiedenmann, Christoph Fleckenstein +10
Electrical currents in a quantum spin Hall insulator are confined to the boundary of the system. The charge carriers can be described as massless relativistic particles, whose spin…
Feasible model for photo-induced interband pairing
S. Porta, L. Privitera, N. Traverso Ziani +3
Recently, it has been proposed that a mechanism for the appearance of non-equilibrium superconductivity in a resonantly driven semiconductor with repulsive interband interactions e…