78 citations · 1.1k across the 53 of their papers we have counts for
33 papers · 1 filter
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…
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…
Anomalous Electrical Conduction and Negative Temperature Coefficient of Resistance in Nanostructured Gold Resistive Switching Films
M. Mirigliano, S. Radice, A. Falqui +3
We report on the observation of non-metallic electrical conduction, resistive switching, and a negative temperature coefficient of resistance in cluster-assembled nanostructured go…
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…
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…
Time-resolved energy dynamics after single electron injection into an interacting helical liquid
Alessio Calzona, Matteo Acciai, Matteo Carrega +2
The possibility to inject a single electron into ballistic conductors is at the basis of the new field of electron quantum optics. Here, we consider a single electron injection int…
Crystallization of fractional charges in a strongly interacting quasi-helical quantum dot
F. Cavaliere, F. M. Gambetta, S. Barbarino +1
The ground-state electron density of a one-dimensional spin-orbit coupled quantum dot with a Zeeman term and strong electron interaction is studied at the fractional helical liquid…
Transient dynamics of an adiabatic NEMS
M. Biggio, F. Cavaliere, M. Storace +1
This paper is focused on the transient dynamics of an adiabatic nano-electromechanical system (NEMS), consisting of a nano-mechanical oscillator coupled to a quantum dot. By numeri…
Anomalous Friedel oscillations in a quasi-helical quantum dot
F. M. Gambetta, N. Traverso Ziani, S. Barbarino +2
The charge and spin patterns of a quantum dot embedded into a spin-orbit coupled quantum wire subject to a magnetic field are investigated. A Luttinger liquid theory is developed,…
Magnetic AC control of the spin textures in a helical Luttinger liquid
Giacomo Dolcetto, Fabio Cavaliere, Maura Sassetti
We demonstrate the possibility to induce and control peculiar spin textures in a helical Luttinger liquid, by means of a time-dependent magnetic scatterer. The presence of a pertur…
Theory of the STM detection of Wigner molecules in spin incoherent CNTs
N. Traverso Ziani, F. Cavaliere, M. Sassetti
The linear conductance of a carbon nanotube quantum dot in the Wigner molecule regime, coupled to two scanning tunnel microscope tips is inspected. Considering the high temperature…
Spin textures of strongly correlated spin Hall quantum dots
G. Dolcetto, N. Traverso Ziani, M. Biggio +2
We study the spin ordering of a quantum dot defined via magnetic barriers in an interacting quantum spin Hall edge. The spin-resolved density-density correlation functions are comp…
Carbon nanotube sensor for vibrating molecules
F. Remaggi, N. Traverso Ziani, G. Dolcetto +2
The transport properties of a CNT capacitively coupled to a molecule vibrating along one of its librational modes are studied and its transport properties analyzed in the presence…
Temperature-induced emergence of Wigner correlations in a STM-probed one-dimensional quantum dot
N. Traverso Ziani, F. Cavaliere, M. Sassetti
The temperature-induced emergence of Wigner correlations over finite-size effects in a strongly interacting one-dimensional quantum dot are studied in the framework of the spin coh…
Interaction and temperature effects on the pair correlation function of a strongly interacting 1D quantum dot
N. Traverso Ziani, F. Cavaliere, E. Mariani +1
The pair correlation function of a strongly interacting one-dimensional quantum dot is evaluated analytically within the framework of the spin coherent Luttinger liquid model. The…
Probing Wigner correlations in a suspended carbon nanotube
N. Traverso Ziani, F. Cavaliere, M. Sassetti
The influence of the electron-vibron coupling on the transport properties of a strongly interacting quantum dot built in a suspended carbon nanotube is analyzed. The latter is prob…
Coulomb blockade microscopy of spin density oscillations and fractional charge in quantum spin Hall dots
Giacomo Dolcetto, Niccolò Traverso Ziani, Matteo Biggio +2
We evaluate the spin density oscillations arising in quantum spin Hall quantum dots created via two localized magnetic barriers. The combined presence of magnetic barriers and spin…
Generating and controlling spin-polarized currents induced by a quantum spin Hall antidot
Giacomo Dolcetto, Fabio Cavaliere, Dario Ferraro +1
We study an electrically controlled quantum spin Hall antidot embedded in a two-dimensional topological insulating bar. Helical edge states around the antidot and along the edges o…
Non-linear Coulomb blockade microscopy of a correlated one-dimensional quantum dot
D. Mantelli, F. Cavaliere, M. Sassetti
We evaluate the chemical potential of a one-dimensional quantum dot, coupled to an atomic force microscope tip. The dot is described within the Luttinger liquid framework and the c…
AFM probe for the signatures of Wigner correlations in the conductance of a one-dimensional quantum dot
N. Traverso Ziani, F. Cavaliere, M. Sassetti
The transport properties of an interacting one-dimensional quantum dot capacitively coupled to an atomic force microscope probe are investigated. The dot is described within a Lutt…
An electrical probe for mechanical vibrations in suspended carbon nanotubes
N. Traverso Ziani, G. Piovano, F. Cavaliere +1
The transport properties of a suspended carbon nanotube probed by means of a STM tip are investigated. A microscopic theory of the coupling between electrons and mechanical vibrati…
Coherent properties of nano-electromechanical systems
G. Piovano, F. Cavaliere, E. Paladino +1
We study the properties of a nano-electromechanical system in the coherent regime, where the electronic and vibrational time scales are of the same order. Employing a master equati…
Transport properties of quantum dots in the Wigner molecule regime
F. Cavaliere, U. De Giovannini, M. Sassetti +1
The transport properties of quantum dots with up to N=7 electrons ranging from the weak to the strong interacting regime are investigated via the projected Hartree-Fock technique.…
Asymmetric Franck-Condon factors in suspended carbon nanotube quantum dots
Fabio Cavaliere, Eros Mariani, Renaud Leturcq +2
Electronic states and vibrons in carbon nanotube quantum dots have in general different location and size. As a consequence, the conventional Anderson-Holstein model, coupling vibr…