核自旋体系的相互作用与量子操控

项目名称： 核自旋体系的相互作用与量子操控

项目编号： No.91221205

项目类型： 重大研究计划

立项/批准年度： 2013

项目学科： 数理科学和化学

项目作者： 龙桂鲁

作者单位： 清华大学

项目金额： 310万元

中文摘要： 核自旋量子体系具有较长的量子相干时间和易于操控的优点，可用于量子计算和量子仿真等量子信息处理。本项目研究针对可用于量子计算的液体核磁、液晶核磁和固体核磁样品，研究核自旋之间的相互作用及其与环境的耦合；结合量子控制的技术方法和核磁共振技术中的新成果如复合脉冲、强调制脉冲和GRAPES等，探索核磁共振量子操控的新方法，实现操控的精度改善和速度的提高；在核自旋量子体系实验研究量子算法与量子仿真。

中文关键词： 量子算法；量子模拟；量子纠缠；动力学解耦；量子态重构

英文摘要： Nuclear spin systems have long cohernt times and are easy to manipulate, and they can be used in quantum information processing such as quantum computing and quantum simulation. Nuclear spins are restricted in atoms and molecules in different environment, and they possess complex forms of interaction. In this project, we will study the inter-spin interactions of nuclear spins in molecules of liquid NMR, liquid crystall NMR and solid-state NMR samples and study their couplings with the environment. Combining with recent developments in quantum control and NMR technique such as SMP, composite pulses and GRAPES, we will develop new methods and pulse sequences of NMR quantum manipulation. We will experimentally realize quantum algorithms and quantum simulations. By completing this project, we try to improve the accuracy and speed of quantum manipulations in nuclear spin systems, and to promote the NMR quantum computing experimental studies.

英文关键词： Quantum algorithm；Quantum simulation；Quantum entanglement；Dynamical decoupling；Quantum tomography