Quantum Control of Mesoscopic Collective Spin States

在原子尺度上控制复杂系统是纳米技术的前沿。 在这个尺度上，量子力学的效应允许从根本上新一代的信息处理设备，如量子计算机，通信系统和精确的传感器。 这些效应将在一个联合理论实验项目中进行研究，该项目涉及由激光捕获和探测的约1，000，000个铯原子的超冷蒸汽。 这些原子的集合就像一个旋转的陀螺一样。 通过激光和磁场控制集体自旋，创造新的量子态，为在量子水平上编码和传输信息奠定基础。这项研究将有助于建立量子信息科学的知识基础，并有助于培养这一高度跨学科领域的未来科学家。 学生将参与该项目的各个方面，包括教育，研究和成果的传播。 该项目将成为新成立的量子信息与控制中心的基石。将利用视频会议让CQuIC合作伙伴参与CQuIC的定期活动，包括每周小组会议和研究研讨会，并通过年度研究务虚会加强初级和高级成员之间的联系。所有学生和高级人员将积极参与西南量子信息技术（SQuInT）网络，包括年度研讨会。在其11年的历史中，SQuInT为QIS的思想和成果交流提供了一个充满活力的途径，特别强调博士生，博士后和该领域的新研究人员。

Control of complex systems at the atomic scale is at the frontier of nano-technology. At this scale, the effects of quantum mechanics allow for a fundamentally new generation of information processing devises such as quantum-computers, communication systems, and precise sensors. These effects will be studied in a joint theoretical-experimental project involving ultra-cold vapors of approximately 1,000,000 cesium atoms trapped and probed by laser light. This collection of atoms act as a single unit analogous to a spinning top. The collective spin will be controlled with lasers and magnetic fields in order to create new quantum states that can form the foundation for encoding and communicating information at the quantum level.The research will contribute to the knowledge base of quantum information science, and to the training of future scientists in this highly interdisciplinary field. Students will be involved in all aspects of the project, including education, research, and the dissemination of results. The project will become a cornerstone of the newly-formed Center for Quantum Information and Control. Video conferencing will be used to allow participation of CQuIC partners in the regular activities of CQuIC, including weekly group meetings and research seminars, and strengthen the connections between junior and senior members through an annual research retreat. All students and senior personnel will actively participate in the Southwest Quantum Information Technology (SQuInT) network, including the annual workshop. During its 11-year history SQuInT has provided a vibrant avenue for exchange of ideas and results in QIS, with particular emphasis given to PhD students, postdocs, and new researchers in the field.