Latest developments in the Sinara open hardware ecosystem
Institute of Electrical and Electronics Engineers (IEEE) 00 (2022) 799-802
Urukul – Open-source Frequency Synthesizer Module for Quantum Physics
International Journal of Electronics and Telecommunications Polish Academy of Sciences Chancellery (2021) 123-128-123-128
Open-source multi-channel Smart Arbitrary Waveform Generators (SAWG) for quantum information processing
Institute of Electrical and Electronics Engineers (IEEE) 00 (2021) 443-444
Benchmarking a high-fidelity mixed-species entangling gate
Physical Review Letters American Physical Society 125:8 (2020) 080504
Abstract:
We implement a two-qubit logic gate between a 43Ca+ hyperfine qubit and a 88Sr+ Zeeman qubit. For this pair of ion species, the S–P optical transitions are close enough that a single laser of wavelength 402 nm can be used to drive the gate but sufficiently well separated to give good spectral isolation and low photon scattering errors. We characterize the gate by full randomized benchmarking, gate set tomography, and Bell state analysis. The latter method gives a fidelity of 99.8(1)%, comparable to that of the best same-species gates and consistent with known sources of error.ARTIQ and Sinara: Open Software and Hardware Stacks for Quantum Physics
Optica Publishing Group (2020) qtu8b.14