Publications (10)
High stability cryogenic system for quantum computing with compact packaged ion traps
Robert F. Spivey, Ismail V. Inlek, Zhubing Jia +9
Cryogenic environments benefit ion trapping experiments by offering lower motional heating rates, collision energies, and an ultra-high vacuum (UHV) environment for maintaining lon…
High-Speed Low-Crosstalk Detection of a Yb Qubit using Superconducting Nanowire Single Photon Detectors
Stephen Crain, Clinton Cahall, Geert Vrijsen +5
Qubits used in quantum computing tend to suffer from errors, either from the qubit interacting with the environment, or from imperfect control when quantum logic gates are applied.…
Stable Optical Phase Modulation with Micromirrors
Caleb Knoernschild, Taehyun Kim, Peter Maunz +2
We measure the motional fluctuations of a micromechanical mirror using a Michelson interferometer, and demonstrate its interferometric stability. The position stability of the micr…
High-fidelity Two-qubit Gates Using a MEMS-based Beam Steering System for Individual Qubit Addressing
Ye Wang, Stephen Crain, Chao Fang +6
In a large scale trapped atomic ion quantum computer, high-fidelity two-qubit gates need to be extended over all qubits with individual control. We realize and characterize high-fi…
Error Compensation of Single-Qubit Gates in a Surface Electrode Ion Trap Using Composite Pulses
Emily Mount, Chingiz Kabytayev, Stephen Crain +7
The fidelity of laser-driven quantum logic operations on trapped ion qubits tend to be lower than microwave-driven logic operations due to the difficulty of stabilizing the driving…
Hidden Inverses: Coherent Error Cancellation at the Circuit Level
Bichen Zhang, Swarnadeep Majumder, Pak Hong Leung +6
Coherent gate errors are a concern in many proposed quantum computing architectures. These errors can be effectively handled through composite pulse sequences for single-qubit gate…
Large language models are not about natural language
Johan J. Bolhuis, Andrea Moro, Stephen Crain +1
Large Language Models are useless for linguistics, as they are probabilistic models that require a vast amount of data to analyse externalized strings of words. In contrast, human…
Design and characterization of individual addressing optics based on multi-channel acousto-optic modulator for Yb qubits
Sungjoo Lim, Seunghyun Baek, Jacob Whitlow +7
We present the design and characterization of individual addressing optics based on a multi-channel acousto-optic modulator (AOM) for trapped ytterbium-171 ions. The design paramet…
Scalable Digital Hardware for a Trapped Ion Quantum Computer
Emily Mount, Daniel Gaultney, Geert Vrijsen +8
Many of the challenges of scaling quantum computer hardware lie at the interface between the qubits and the classical control signals used to manipulate them. Modular ion trap quan…
Single qubit manipulation in a microfabricated surface electrode ion trap
Emily Mount, So-Young Baek, Matthew Blain +7
We trap individual Yb ions in a surface trap microfabricated on a silicon substrate, and demonstrate a complete set of high fidelity single qubit operations for the hyp…