3 papers
quant-ph2026
Towards fault-tolerance with universal phase-error-transparent gates for high-spin cat codes
Kelvin Onggadinata, Si Yan Koh, Arghya Maity +5
High-dimensional nuclear spins offer a hardware-efficient route to quantum error correction (QEC), with the spin cat code providing intrinsic robustness against phase errors -- the…
cond-mat.mes-hall2026
Simultaneous High-Fidelity Readout and Strong Coupling for a Donor-Based Spin Qubit
Si Yan Koh, Weifan Wu, Kelvin Onggadinata +7
Superconducting resonators coupled to solid-state qubits offer a scalable architecture for long-range entangling operations and fast, high-fidelity readout. Realizing this requires…
cond-mat.mes-hall2025
High-fidelity regimes of resonator-mediated controlled-Z gates between quantum-dot qubits
Guangzhao Yang, Marek Gluza, Si Yan Koh +6
Semiconductor double quantum dot (DQD) qubits coupled via superconducting microwave resonators provide a powerful means of long-range manipulation of the qubits' spin and charge de…