87 citations · 806 across the 33 of their papers we have counts for
33 papers
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-…
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…
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…
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…
A coherence sweet spot with enhanced dipolar coupling
Jann H. Ungerer, Alessia Pally, Stefano Bosco +9
Qubits require a compromise between operation speed and coherence. Here, we demonstrate a compromise-free singlet-triplet (ST) qubit, where the qubit couples maximally to the drivi…
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…
High-fidelity spin qubit shuttling via large spin-orbit interaction
Stefano Bosco, Ji Zou, Daniel Loss
Shuttling spins with high fidelity is a key requirement to scale up semiconducting quantum computers, enabling qubit entanglement over large distances and favoring the integration…
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…
Spatially correlated classical and quantum noise in driven qubits: The good, the bad, and the ugly
Ji Zou, Stefano Bosco, Daniel Loss
Correlated noise across multiple qubits poses a significant challenge for achieving scalable and fault-tolerant quantum processors. Despite recent experimental efforts to quantify…
Valley-Free Silicon Fins Caused by Shear Strain
Christoph Adelsberger, Stefano Bosco, Jelena Klinovaja +1
Electron spins confined in silicon quantum dots are promising candidates for large-scale quantum computers. However, the degeneracy of the conduction band of bulk silicon introduce…
Dissipative Spin-wave Diode and Nonreciprocal Magnonic Amplifier
Ji Zou, Stefano Bosco, Even Thingstad +2
We propose an experimentally feasible dissipative spin-wave diode comprising two magnetic layers coupled via a non-magnetic spacer. We theoretically demonstrate that the spacer med…
High-fidelity two-qubit gates of hybrid superconducting-semiconducting singlet-triplet qubits
Maria Spethmann, Stefano Bosco, Andrea Hofmann +2
Hybrid systems comprising superconducting and semiconducting materials are promising architectures for quantum computing. Superconductors induce long-range interactions between the…
Phase driving hole spin qubits
Stefano Bosco, Simon Geyer, Leon C. Camenzind +7
The spin-orbit interaction in spin qubits enables spin-flip transitions, resulting in Rabi oscillations when an external microwave field is resonant with the qubit frequency. Here,…
Two-qubit logic with anisotropic exchange in a fin field-effect transistor
Simon Geyer, Bence Hetényi, Stefano Bosco +7
Semiconductor spin qubits offer a unique opportunity for scalable quantum computation by leveraging classical transistor technology. Hole spin qubits benefit from fast all-electric…
Quantum computing on magnetic racetracks with flying domain wall qubits
Ji Zou, Stefano Bosco, Banabir Pal +3
Domain walls (DWs) on magnetic racetracks are at the core of the field of spintronics, providing a basic element for classical information processing. Here, we show that mobile DWs…
Determination of spin-orbit interaction in semiconductor nanostructures via non-linear transport
Renato M. A. Dantas, Henry F. Legg, Stefano Bosco +2
We investigate non-linear transport signatures stemming from linear and cubic spin-orbit interactions in one- and two-dimensional systems. The analytical zero-temperature response…
Planar Josephson junctions in germanium: Effect of cubic spin-orbit interaction
Melina Luethi, Katharina Laubscher, Stefano Bosco +2
Planar Josephson junctions comprising semiconductors with strong spin-orbit interaction (SOI) are promising platforms to host Majorana bound states (MBSs). Previous works on MBSs i…
Enhanced orbital magnetic field effects in Ge hole nanowires
Christoph Adelsberger, Stefano Bosco, Jelena Klinovaja +1
Hole semiconductor nanowires (NW) are promising platforms to host spin qubits and Majorana bound states for topological qubits because of their strong spin-orbit interactions (SOI)…
Anomalous zero-field splitting for hole spin qubits in Si and Ge quantum dots
Bence Hetényi, Stefano Bosco, Daniel Loss
An anomalous energy splitting of spin triplet states at zero magnetic field has recently been measured in germanium quantum dots. This zero-field splitting could crucially alter th…
Hole spin qubits in thin curved quantum wells
Stefano Bosco, Daniel Loss
Hole spin qubits are frontrunner platforms for scalable quantum computers because of their large spin-orbit interaction which enables ultrafast all-electric qubit control at low po…
Fully tunable longitudinal spin-photon interactions in Si and Ge quantum dots
Stefano Bosco, Pasquale Scarlino, Jelena Klinovaja +1
Spin qubits in silicon and germanium quantum dots are promising platforms for quantum computing, but entangling spin qubits over micrometer distances remains a critical challenge.…
Hole Spin Qubits in Ge Nanowire Quantum Dots: Interplay of Orbital Magnetic Field, Strain, and Growth Direction
Christoph Adelsberger, Mónica Benito, Stefano Bosco +2
Hole spin qubits in quasi one-dimensional structures are a promising platform for quantum information processing because of the strong spin-orbit interaction (SOI). We present anal…
Fully tunable hyperfine interactions of hole spin qubits in Si and Ge quantum dots
Stefano Bosco, Daniel Loss
Hole spin qubits are frontrunner platforms for scalable quantum computers, but state-of-the-art devices suffer from noise originating from the hyperfine interactions with nuclear d…
Squeezed hole spin qubits in Ge quantum dots with ultrafast gates at low power
Stefano Bosco, Mónica Benito, Christoph Adelsberger +1
Hole spin qubits in planar Ge heterostructures are one of the frontrunner platforms for scalable quantum computers. In these systems, the spin-orbit interactions permit efficient a…