130 citations · 2.8k across the 93 of their papers we have counts for
8 papers · 1 filter
Local density of states in metal - topological superconductor hybrid systems
Marco Gibertini, Fabio Taddei, Marco Polini +1
We study by means of the recursive Green's function technique the local density-of-states of (finite and semi-infinite) multi-band spin-orbit coupled semiconducting nanowires in pr…
Proposal for a Datta-Das transistor in the quantum Hall regime
Luca Chirolli, D. Venturelli, F. Taddei +2
We propose a resonant spin-field-effect transistor for chiral spin-resolved edge states in the integer quantum Hall effect with Rashba spin-orbit interaction. It employs a periodic…
Josephson current in a four terminal superconductor - exciton condensate - superconductor system
Sebastiano Peotta, Marco Gibertini, Fabrizio Dolcini +5
We investigate the transport properties of a bilayer exciton condensate that is contacted by four superconducting leads. We focus on the equilibrium regime and investigate how the…
Controlled coupling of spin-resolved quantum Hall edge states
Biswajit Karmakar, Davide Venturelli, Luca Chirolli +8
Topologically-protected edge states are dissipationless conducting surface states immune to impurity scattering and geometrical defects that occur in electronic systems characteriz…
Hybrid superconducting quantum magnetometer
F. Giazotto, F. Taddei
A superconducting quantum magnetometer based on magnetic flux-driven modulation of the density of states of a proximized metallic nanowire is theoretically analyzed. With optimized…
A Josephson Quantum Electron Pump
F. Giazotto, P. Spathis, S. Roddaro +4
A macroscopic fluid pump works according to the law of Newtonian mechanics and transfers a large number of molecules per cycle (of the order of 10^23). By contrast, a nano-scale ch…
Spatially-resolved analysis of edge-channel equilibration in quantum Hall circuits
Nicola Paradiso, Stefan Heun, Stefano Roddaro +7
We demonstrate an innovative quantum Hall circuit with variable geometry employing the moveable electrostatic potential induced by a biased atomic force microscope tip. We exploit…
Quantitative entanglement witnesses of Isotropic- and Werner-class via local measurements
Pietro Silvi, Fabio Taddei, Rosario Fazio +1
Quantitative entanglement witnesses allow one to bound the entanglement present in a system by acquiring a single expectation value. In this paper we analyze a special class of suc…