22 papers
Bipolar Thermoelectric Superconducting Quantum Devices
F. Antola, G. Marchegiani, A. Braggio +1
Quantum technologies increasingly require accurate modeling of their hardware components and of the non-equilibrium regimes in which they operate, where managing heat and energy fl…
A Voltage-Controlled Josephson Frequency Comb
Giorgio De Simoni, Francesco Giazotto
Microwave frequency combs constitute promising resources for quantum technologies, cryogenic electronics, and multiplexed sensing architectures. In this work, we propose a frequenc…
A Zero-Bias Superconducting Voltage Amplifier Based on the Bipolar Thermoelectric Effect
Giacomo Trupiano, Giorgio De Simoni, Francesco Giazotto
We introduce a zero-bias superconducting voltage amplifier that harvests energy from a thermal gradient by exploiting negative differential resistance (NDR) in an asymmetric tunnel…
Extremely weak electron-phonon coupling in Josephson junctions built on InAs on Insulator
Giorgio De Simoni, Sebastiano Battisti, Alessandro Paghi +2
InAs-on-Insulator (InAsOI) enables an effective superconducting proximity effect and extremely weak electron-phonon (e-ph) coupling, allowing precise electronic-temperature control…
Impact of magnetic field direction on anti-dot-based superconducting diodes
E. B. de Melo Junior, E. Strambini, F. Giazotto +1
The superconducting diode effect (SDE) is a fundamental building block for dissipationless nonreciprocal electronics, yet its microscopic origins in thin films often involve compet…
Quantum Bipolar Thermoelectricity
Filippo Antola, Giorgio De Simoni, Francesco Giazotto +1
Thermoelectricity is generally understood as a classical effect emerging from energy-dependent transport asymmetries. Here we uncover a purely quantum mechanism, where a supercondu…