207 citations · 452 across the 7 of their papers we have counts for
7 papers
Helios: A 98-qubit trapped-ion quantum computer
Anthony Ransford, M. S. Allman, Jake Arkinstall +183
We report on Quantinuum Helios, a 98-qubit trapped-ion quantum processor based on the quantum charge-coupled device (QCCD) architecture. Helios features Ba hyperfine…
Scalable Multispecies Ion Transport in a Grid-Based Surface-Electrode Trap
Robert D. Delaney, Lucas R. Sletten, Matthew J. Cich +13
Quantum processors based on linear arrays of trapped ions have achieved exceptional performance, but scaling to large qubit numbers requires realizing two-dimensional ion arrays as…
Implementing Fault-tolerant Entangling Gates on the Five-qubit Code and the Color Code
C. Ryan-Anderson, N. C. Brown, M. S. Allman +34
We compare two different implementations of fault-tolerant entangling gates on logical qubits. In one instance, a twelve-qubit trapped-ion quantum computer is used to implement a n…
High fidelity state preparation and measurement of ion hyperfine qubits with I > 1/2
Fangzhao Alex An, Anthony Ransford, Andrew Schaffer +4
We present a method for achieving high fidelity state preparation and measurement (SPAM) using trapped ion hyperfine qubits with nuclear spins higher than . The ground sta…
Measurement of Holmium Rydberg series through MOT depletion spectroscopy
J. Hostetter, J. D. Pritchard, J. E. Lawler +1
We report measurements of the absolute excitation frequencies of Ho and odd-parity Rydberg series. The states are detected through depletion of…
Magneto-Optical Trapping of Holmium Atoms
J. Miao, J. Hostetter, G. Stratis +1
We demonstrate sub-Doppler laser cooling and magneto-optical trapping of the rare earth element Holmium. Atoms are loaded from an atomic beam source and captured in six-beam $σ_+ -…
VUV frequency combs from below-threshold harmonics
Dylan C. Yost, Thomas R. Schibli, Jun Ye +4
Recent demonstrations of high-harmonic generation (HHG) at very high repetition frequencies (~100 MHz) may allow for the revolutionary transfer of frequency combs to the vacuum ult…