6 papers
Scalable hyperfine qubit state detection via electron shelving in the D and F manifolds in Yb
C. L. Edmunds, T. R. Tan, A. R. Milne +3
Qubits encoded in hyperfine states of trapped ions are ideal for quantum computation given their long lifetimes and low sensitivity to magnetic fields, yet they suffer from off-res…
Precision Characterization of the D State and Quadratic Zeeman Coefficient in Yb
T. R. Tan, C. L. Edmunds, A. R. Milne +2
We report measurements of the branching fraction, hyperfine constant, and second-order Zeeman coefficient of the D level in Yb with up to two orders-of-magnitud…
Quantum oscillator noise spectroscopy via displaced cat states
Alistair R. Milne, Cornelius Hempel, Li Li +5
Quantum harmonic oscillators are central to many modern quantum technologies. We introduce a method to determine the frequency noise spectrum of oscillator modes through coupling t…
Software tools for quantum control: Improving quantum computer performance through noise and error suppression
Harrison Ball, Michael J. Biercuk, Andre Carvalho +10
Manipulating quantum computing hardware in the presence of imperfect devices and control systems is a central challenge in realizing useful quantum computers. Susceptibility to noi…
Autonomous adaptive noise characterization in quantum computers
Riddhi Swaroop Gupta, Alistair R. Milne, Claire L. Edmunds +2
New quantum computing architectures consider integrating qubits as sensors to provide actionable information useful for decoherence mitigation on neighboring data qubits, but littl…
Phase-modulated entangling gates robust to static and time-varying errors
Alistair R. Milne, Claire L. Edmunds, Cornelius Hempel +3
Entangling operations are among the most important primitive gates employed in quantum computing and it is crucial to ensure high-fidelity implementations as systems are scaled up.…