András Pályi : Operating semiconductor spin qubits with geometric single-qubit gates at zero magnetic field
András Pályi, Budapest University of Technology and Economics
Le résumé :
Single-electron spin qubits in semiconductor quantum dots provide a promising platform for quantum computing. Traditionally, such qubits are operated at a finite magnetic field, using resonant control with microwave pulses. A twofold major technological simplification of the platform would be achieved by operating the qubits (1) without a magnet, and (2) with baseband voltage pulses only.
We propose such an architecture based on geometric single-qubit gates, which exploit spin-orbit interaction and the concept of the non-Abelian Berry phase. We also provide a roadmap of intermediate experimental milestones toward scaling up this architecture. The roadmap is based on recent progress with hole spin qubits in planar Germanium quantum wells.
Reference:
http://arxiv.org/abs/2308.05455