Publications by Fabian Oppliger

High kinetic inductance cavity arrays for compact band engineering and topology-based disorder meters

Simone Frasca, Guillaume Beaulieu, Pasquale Scarlino, Vincent Jean Yves Jouanny, Fabian Oppliger, Marco Scigliuzzo

Superconducting microwave metamaterials offer enormous potential for quantum optics and information science, enabling the development of advanced quantum technologies for sensing and amplification. In the context of circuit quantum electrodynamics, such me ...

2025

Demonstration of Microwave Resonators and Double Quantum Dots on Optimized Reverse-Graded Ge/SiGe Heterostructures

Pasquale Scarlino, Fabian Oppliger

One of the most promising platforms for the realization of spin-based quantum computing are planar germanium quantum wells embedded between silicon-germanium barriers. To achieve comparably thin stacks with little surface roughness, this type of heterostru ...

2024

Strong hole-photon coupling in planar Ge for probing charge degree and strongly correlated states

Pasquale Scarlino, Fabian Oppliger

Semiconductor quantum dots (QDs) in planar germanium (Ge) heterostructures have emerged as front-runners for future hole-based quantum processors. Here, we present strong coupling between a hole charge qubit, defined in a double quantum dot (DQD) in planar ...

Nature Research2024

NbN films with high kinetic inductance for high-quality compact superconducting resonators

Edoardo Charbon, Simone Frasca, Pasquale Scarlino, Vincent Jean Yves Jouanny, Fabian Oppliger, Fabrizio Minganti, Marco Scigliuzzo, Roberto Musio

Niobium nitride (NbN) is a particularly promising material for quantum technology applications, as it shows the degree of reproducibility necessary for large-scale superconducting circuits. We demonstrate that resonators based on NbN thin films present a o ...

American Physical Society (APS)2023

Quantum Dots Array on Ultra-Thin SOI Nanowires with Ferromagnetic Cobalt Barrier Gates for Enhanced Spin Qubit Control

Heike Riel, Pasquale Scarlino, Fabian Oppliger, Michele Ghini

In this work we propose and demonstrate the integration of ferromagnetic nanosized cobalt barrier gates in quantum dots arrays on ultra-thin fully-depleted Silicon-On-Insulator (SOI) nanowires. This innovative structure enhances both driving and addressabi ...

IEEE2023

Multi-Gate FD-SOI Single Electron Transistor for hybrid SET-MOSFET quantum computing

Mihai Adrian Ionescu, Pasquale Scarlino, Fabian Oppliger

In this work we explore the fabrication and experimental characterization of multi-gate FD-SOI devices that can operate both as single electron transistors (SETs) and MOSFETs. FD-SOI SET operation is achieved with electrostatically induced tunneling barrie ...

IEEE2022