42 citations · 92 across the 14 of their papers we have counts for
15 papers
Benchmarking exchange-only control of a 48-spin singlet manifold
HRL Quantum Team, Microsoft Collaborators, : +125
Exchange-only quantum computing benefits from high fidelity and straightforward control afforded by the exchange interaction. However, independently controllable qubits must be enc…
Revealing Noise in Axial Motion Through Quantum Noise Spectroscopy on a Trapped Ion Processor
Vivian Maloney, Matthew Chow, Leigh Norris +7
Native noise processes in quantum processors are often difficult to isolate because multiple error mechanisms contribute to the same measured loss of coherence. Here we use dephasi…
High-performance gates on trapped ion qubits using counterpropagating pulse-shaped laser beams
Evangelos Piliouras, Hisham Amer, Susan M. Clark +9
Highly-localized light-matter interactions are necessary for scaling trapped-ion architectures. In hyperfine qubits, counterpropagating beams generate entangling gates by coupling…
Realization and Calibration of Continuously Parameterized Two-Qubit Gates on a Trapped-Ion Quantum Processor
Christopher G. Yale, Ashlyn D. Burch, Matthew N. H. Chow +5
Continuously parameterized two-qubit gates are a key feature of state-of-the-art trapped-ion quantum processors as they have favorable error scalings and show distinct improvements…
Solovay Kitaev Algorithm and Randomized Compilation
Oliver Maupin, Ashlyn D. Burch, Christopher G. Yale +10
We analyze the use of the Solovay Kitaev (SK) algorithm to generate an ensemble of one qubit rotations over which to perform randomized compilation. We perform simulations to compa…
Noise-Aware Circuit Compilations for a Continuously Parameterized Two-Qubit Gateset
Christopher G. Yale, Rich Rines, Victory Omole +9
State-of-the-art noisy-intermediate-scale quantum (NISQ) processors are currently implemented across a variety of hardware platforms, each with their own distinct gatesets. As such…
Digital Quantum Simulation of Cavity Quantum Electrodynamics: Insights from Superconducting and Trapped Ion Quantum Testbeds
Alex H. Rubin, Brian Marinelli, Victoria A. Norman +15
We explore the potential for hybrid development of quantum hardware where currently available quantum computers simulate open Cavity Quantum Electrodynamical (CQED) systems for app…
First-Order Crosstalk Mitigation in Parallel Quantum Gates Driven With Multi-Photon Transitions
Matthew N. H. Chow, Christopher G. Yale, Ashlyn D. Burch +4
We demonstrate an order of magnitude reduction in the sensitivity to optical crosstalk for neighboring trapped-ion qubits during simultaneous single-qubit gates driven with individ…
Error mitigation, optimization, and extrapolation on a trapped ion testbed
Oliver G. Maupin, Ashlyn D. Burch, Brandon Ruzic +8
Current noisy intermediate-scale quantum (NISQ) trapped-ion devices are subject to errors which can significantly impact the accuracy of calculations if left unchecked. A form of e…
Frequency-robust Mølmer-Sørensen gates via balanced contributions of multiple motional modes
Brandon P. Ruzic, Matthew N. H. Chow, Ashlyn D. Burch +5
In this work, we design and implement frequency-robust Molmer-Sorensen gates on a linear chain of trapped ions, using Gaussian amplitude modulation and a constant laser frequency.…
Batching Circuits to Reduce Compilation in Quantum Control Hardware
Ashlyn D. Burch, Daniel S. Lobser, Christopher G. Yale +6
At Sandia National Laboratories, QSCOUT (the Quantum Scientific Computing Open User Testbed) is an ion-trap based quantum computer built for the purpose of allowing users low-level…
High-Fidelity, Low-Loss State Detection of Alkali-Metal Atoms in Optical Tweezer Traps
Matthew N. H. Chow, Bethany J. Little, Yuan-Yu Jau
We demonstrate discrimination of ground-state hyperfine manifolds of a cesium atom in an optical tweezer using a simple probe beam with 99.91(2)% detection fidelity and 0.9(2)% det…
Characterizing and mitigating coherent errors in a trapped ion quantum processor using hidden inverses
Swarnadeep Majumder, Christopher G. Yale, Titus D. Morris +6
Quantum computing testbeds exhibit high-fidelity quantum control over small collections of qubits, enabling performance of precise, repeatable operations followed by measurements.…
Sample-efficient verification of continuously-parameterized quantum gates for small quantum processors
Ryan Shaffer, Hang Ren, Emiliia Dyrenkova +7
Most near-term quantum information processing devices will not be capable of implementing quantum error correction and the associated logical quantum gate set. Instead, quantum cir…
Engineering the Quantum Scientific Computing Open User Testbed (QSCOUT): Design details and user guide
Susan M. Clark, Daniel Lobser, Melissa Revelle +13
The Quantum Scientific Computing Open User Testbed (QSCOUT) at Sandia National Laboratories is a trapped-ion qubit system designed to evaluate the potential of near-term quantum ha…