19 papers
Geometric signatures of the onset of many-body ergodicity
Chris Ventura-Meinersen, Edmondo Valvo, Stefano Bosco +2
Identifying universal, robust, and interpretable signatures of the onset of ergodicity remains a major challenge. The adiabatic gauge potential has been noted to act as a sensitive…
A Degenerate Singlet-Triplet Qubit with All-Electrical Orthogonal Control
Phuong X. Nguyen, Konstantinos Tsoukalas, Jann H. Ungerer +8
The paper demonstrates an all‑electrical method to achieve orthogonal control of a degenerate singlet‑triplet qubit formed by two hole spins in a germanium double quantum dot, enab…
Frequency-resolved decoherence spectroscopy of a semiconductor charge qubit coupled to a high-impedance resonator
Ekaterina Al-Tavil, Wonjin Jang, David J. van Woerkom +10
Superconducting resonators coupled to semiconductor quantum dots provide a powerful platform to investigate light-matter interaction and decoherence mechanisms in solid-state quant…
Tailoring Germanium Heterostructures for Quantum Devices with Machine Learning
Patrick Del Vecchio, Kevin Rossi, Giordano Scappucci +1
Germanium (Ge) quantum wells are emerging as versatile platforms for quantum devices, supporting high-quality spin qubits and integration with superconducting leads. These applicat…
Strain engineering of Andreev spin qubits in Germanium
Vittorio Coppini, Patrick Del Vecchio, Antonio L. R. Manesco +4
Planar germanium heterostructures are promising hosts for hybrid quantum devices due to their compatibility with superconductors, low material disorder, and relaxed fabrication con…
Suppressing spin qubit decoherence during shuttling via confinement modulation
Daniel Q. L. Nguyen, Maximilian Rimbach-Russ, Stefano Bosco
Reliable long-range qubit shuttling is a powerful tool for scalable quantum computing architectures. We investigate strategies to improve the coherence of moving spin qubits by per…