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Quantum Oscillator Noise Spectroscopy via Displaced Cat States.
TLDR
This work applies a method to determine the frequency noise spectrum of oscillator modes through coupling them to a qubit with continuously driven qubit-state-dependent displacements to the identification of intrinsic noise in the motional frequency of a single trapped ion. Expand
Software tools for quantum control: improving quantum computer performance through noise and error suppression
TLDR
This manuscript introduces software tools for the application and integration of quantum control in quantum computing research, serving the needs of hardware R&D teams, algorithm developers, and end users, and describes a software architecture leveraging both high-performance distributed cloud computation and local custom integration into hardware systems. Expand
Phase-Modulated Entangling Gates Robust to Static and Time-Varying Errors
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. We experimentallyExpand
Adaptive characterization of spatially inhomogeneous fields and errors in qubit registers
TLDR
An adaptive learning framework, Noise Mapping for Quantum Architectures (NMQA), for scheduling of sensor–qubit measurements and efficient spatial noise mapping (prior to actuation) across device architectures is presented. Expand
Autonomous adaptive noise characterization in quantum computers.
New quantum computing architectures consider integrating qubits as sensors to provide actionable information useful for decoherence mitigation on neighboring data qubits, but little work hasExpand
Adaptive scheduling of noise characterization in quantum computers
New quantum computing architectures consider integrating qubits as sensors to provide actionable information useful for decoherence mitigation on neighboring data qubits. Little work has addressedExpand
Scalable hyperfine qubit state detection via electron shelving in the 2D5/2 and 2F7/2 manifolds in 171Yb+
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-resonant scatteringExpand
Precision characterization of the D5/22 state and the quadratic Zeeman coefficient in Yb+171
We report measurements of the branching fraction, hyperfine constant, and second-order Zeeman coefficient of the D5/2 level in Ybwith up to two orders-of-magnitude improvement in precision comparedExpand
Phase-modulated spin-motional decoupling with trapped ions
Submitted for the MAR16 Meeting of The American Physical Society Phase-modulated spin-motional decoupling with trapped ions CLAIRE EDMUNDS, ALISTAIR MILNE, SANDEEP MAVADIA, TODD GREEN, MICHAELExpand