768 citations · 3.1k across the 44 of their papers we have counts for
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Nanoscale Mach-Zehnder interferometer with spin-resolved quantum Hall edge states
Biswajit Karmakar, Davide Venturelli, Luca Chirolli +7
We realize a nanoscale-area Mach-Zehnder interferometer with co-propagating quantum Hall spin-resolved edge states and demonstrate the persistence of gate-controlled quantum interf…
Minimal Self-Contained Quantum Refrigeration Machine Based on Four Quantum Dots
Davide Venturelli, Rosario Fazio, Vittorio Giovannetti
We present a theoretical study of an electronic quantum refrigerator based on four quantum dots arranged in a square configuration, in contact with as many thermal reservoirs. We s…
Imaging backscattering through impurity-induced antidots in quantum Hall constrictions
Nicola Paradiso, Stefan Heun, Stefano Roddaro +6
We exploit the biased tip of a scanning gate microscope (SGM) to induce a controlled backscattering between counter-propagating edge channels in a wide constriction in the quantum…
Elastic precession of electronic spin states in interacting integer quantum Hall edge channels
Davide Venturelli, Denis Feinberg
We consider the effect of Coulomb interactions in the propagation of electrons, prepared in arbitrary spin states, on chiral edge channels in the integer quantum Hall regime. Elect…
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…
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…
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…
Edge channel mixing induced by potential steps in an integer quantum Hall system
D. Venturelli, V. Giovannetti, F. Taddei +4
We investigate the coherent mixing of co-propagating edge channels in a quantum Hall bar produced by step potentials. In the case of two edge channels it is found that, although a…