6 papers
Hole-spin qubits in germanium beyond the single-particle regime
Andrea Secchi, Gaia Forghieri, Paolo Bordone +3
The intense simulation efforts on hole-spin qubits in germanium have so far focused primarily on singly occupied quantum dots. Here, we theoretically investigate three-hole qubits…
Topological Spin Textures Enabling Quantum Transmission
Ji Zou, Stefano Bosco, Jelena Klinovaja +1
Quantum spintronics is an emerging field focused on developing novel applications by utilizing the quantum coherence of magnetic systems. A key challenge in this context is achievi…
Compromise-Free Scaling of Qubit Speed and Coherence
Miguel J. Carballido, Simon Svab, Rafael S. Eggli +12
Across leading qubit platforms, a common trade-off persists: increasing coherence comes at the cost of operational speed, reflecting the notion that protecting a qubit from its noi…
Readout sweet spots for spin qubits with strong spin-orbit interaction
Domonkos Svastits, Bence Hetényi, Gábor Széchenyi +4
Qubit readout schemes often deviate from ideal projective measurements, introducing critical issues that limit quantum computing performance. In this work, we model charge-sensing-…
Anomalous Josephson effect in hybrid superconductor-hole systems
Peter D. Johannsen, Henry F. Legg, Stefano Bosco +2
We consider hybrid systems consisting of a hole-doped semiconductor coupled to electronic states of finite-size superconductors, where the opposite sign of the masses in the two su…
Strong hole-photon coupling in planar Ge for probing charge degree and strongly-correlated states
Franco De Palma, Fabian Oppliger, Wonjin Jang +7
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…