1、Department of Energy Office of Science Washington,DC 20585 Office of the Director Quantum information science(QIS)opens the door to revolutionize the way we process,store,and transmit information.The U.S.Department of Energys(DOE)Office of Science plays a key role in QIS research&development(R&D).Th

2、e Office of Science has provided sustained support for the development of QIS,leading to groundbreaking scientific discoveries and significant advances in our understanding of the natural world.To inform QIS program activities,the Office of Science formed a committee of QIS experts spanning industry

3、,academia,and DOEs national laboratories to develop a roadmap for potential quantum applications relevant to DOEs mission.I greatly appreciate the committees tireless efforts to deliver this report.The following roadmap details technical challenges,guideposts,and milestones related to applications i

4、n quantum computing,quantum sensing,and quantum networks.The committee considered many factors and sources including scientific literature,detailed interviews with experts from a variety of related science and technology areas,and DOEs current and past contributions to QIS and related fields.This re

5、port provides us with several key takeaways.Notably,the precise nature and the full extent of quantum advantages,and the resources required to realize the impact of these technologies on DOE-related problems,remain an active area of research.While QIS has undergone significant fundamental advances o

6、ver the last few decades,it is at a nascent stage of technology development.There are multiple fundamental and engineering challenges remaining.Overcoming each of these challenges will require substantial R&D,further scientific discovery,and innovation.For this reason,the timelines reported in the r