2022-04-19-伯克利实验室-追踪美国量子计算_伯克利国家实验室进展报告_20页_3mb

Advanced Quantum Testbed (AQT) Summary

Introduction

The Advanced Quantum Testbed (AQT) is a state-of-the-art, open-access experimental platform at Lawrence Berkeley National Laboratory, funded by the U.S. Department of Energy, focused on advancing quantum computing research through collaborations with academic and industrial partners.

Mission and Objectives

AQT aims to accelerate quantum information science by enabling broad access to quantum hardware and software, training the next generation of scientists and engineers, and fostering innovation in quantum algorithms and applications.

Team Leadership

Key figures include Director Dr. Irfan Siddiqi, Science and Technical Lead David I. Santiago, Quantum Program Manager Christopher Spitzer, and Head of Measurement Ravi Naik. The team comprises multidisciplinary researchers specializing in hardware, software, and control systems.

History

Launched in 2018, AQT's initial phases focused on hardware deployment and development, transitioning to open user access in 2020. It has supported a variety of scientific explorations, including quantum simulation and error mitigation.

Architecture

AQT features a full-stack platform with superconducting quantum processors, modular cryogenic systems, and an open-source control stack named QubiC. This architecture supports deep collaboration, automated calibration, and performance optimization tools.

Software Stack

The versatile software stack allows low-level access to quantum experiments, including compilation techniques and error-mitigation protocols, facilitating quantum algorithm development.

Hardware and Control

Notable hardware advancements include the Bluefors "Blizzard" cryogenic dilution refrigerator with 128 qubits. QubiC provides flexible, modular control electronics, reducing complexity and cost for quantum processors.

Testbed User Program

AQT invites user proposals via a peer-review process, empowering researchers to conduct experiments on NISQ hardware and contribute to the quantum ecosystem.

Science Highlights

Key achievements include high-fidelity quantum gates (~98%), error characterization in qutrits, precise error mitigation strategies, and optimized quantum algorithm execution.

Building the Quantum Workforce

Through training programs for students and postdocs, AQT integrates quantum expertise into the broader research community, preparing talent for global quantum initiatives.

Contact information and acknowledgments are provided in the report, but excluded here for brevity.