NMR Study of Liquid Crystals
液晶的核磁共振研究
基本信息
- 批准号:0090218
- 负责人:
- 金额:$ 28.71万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2001
- 资助国家:美国
- 起止时间:2001-02-01 至 2004-01-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This project on Nuclear magnetic Resonance (NMR) studies of liquid crystals will involve two new thrusts: (1) the use of carbon-13 NMR to measure long range dipolar coupling constants, and (2) the use of liquid crystals for NMR quantum computing. Regarding area (1), the existing pulse sequence being used with newly developed methods in solid-state NMR will be modified to improve performance, and other types of liquid crystals will be synthesized and studied to provide the most stringent experimental criteria for judging the success of theoretical models, especially molecular dynamics simulations. In area (2), the premise of NMR quantum computing requires that pseudopure quantum states, for which the populations of all energy levels but one are equal, be used instead of pure quantum states. To prepare these pseudospure states for systems with three or more quantum bits, new approaches will be developed to overcome the existing methods for elaborate pulse sequences with many steps that make these experiment very difficult. Multifrequence radiation will be used to prepare the pseudopure states via population transfer to greatly reduce the number of steps needed. Another method to be explored is the use of pairs of pseudopure states and their extension to study liquid crystal systems with 4 to 7 qubits. The main emphasis will be the development of NMR, methodology and the search for proper spin systems rather than devising algorithms to solve problems requiring complicated quantum computation.%%%This liquid crystal research project is very multidisciplinary involving a broad scope of training opportunities for students in areas that include synthetic chemistry, quantum physics, and modeling and simulation, as well as applied technologies involving liquid crystals as optical materials for displays and for quantum computing. Because these areas of high priority in industry, these students are highly competitive in the job market.
这个关于液晶核磁共振(NMR)研究的项目将涉及两个新的重点:(1)使用碳-13核磁共振测量远程偶极耦合常数,(2)使用液晶进行核磁共振量子计算。对于区域(1),将对固态核磁共振中采用新开发方法的现有脉冲序列进行修改以提高性能,并将合成和研究其他类型的液晶,为判断理论模型,特别是分子动力学模拟的成功提供最严格的实验标准。在区域(2)中,核磁共振量子计算的前提要求使用伪纯量子态代替纯量子态,即除一个能级外的所有能级的居群相等。为了在具有三个或更多量子比特的系统中制备这些伪原生态,将开发新的方法来克服现有的精细脉冲序列方法,这些方法有许多步骤,使得这些实验非常困难。多频辐射将被用来制备伪纯态,通过人口转移,大大减少所需的步骤。另一种需要探索的方法是利用伪纯态对及其扩展来研究具有4到7个量子比特的液晶系统。主要的重点将是核磁共振的发展、方法和寻找合适的自旋系统,而不是设计算法来解决需要复杂量子计算的问题。这个液晶研究项目是非常多学科的,为学生提供了广泛的培训机会,包括合成化学,量子物理,建模和模拟,以及涉及液晶作为光学材料的显示和量子计算的应用技术。由于这些领域在工业中具有很高的优先级,这些学生在就业市场上具有很强的竞争力。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Bing Fung其他文献
Bing Fung的其他文献
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{{ truncateString('Bing Fung', 18)}}的其他基金
Nuclear Magnetic Resonance Study of Liquid Crystals
液晶的核磁共振研究
- 批准号:
9700680 - 财政年份:1997
- 资助金额:
$ 28.71万 - 项目类别:
Continuing Grant
Carbon-13 NMR Study of Liquid Crystals
液晶的碳 13 NMR 研究
- 批准号:
9321114 - 财政年份:1994
- 资助金额:
$ 28.71万 - 项目类别:
Continuing Grant
Research Experiences for Undergraduates at the University of Oklahoma
俄克拉荷马大学本科生的研究经历
- 批准号:
9100992 - 财政年份:1991
- 资助金额:
$ 28.71万 - 项目类别:
Continuing Grant
Nuclear Magnetic Resonance Study of Liquid Crystals with Variable Angle Spinning
变角旋转液晶的核磁共振研究
- 批准号:
9018753 - 财政年份:1991
- 资助金额:
$ 28.71万 - 项目类别:
Continuing Grant
REU in Chemistry at the University of Oklahoma
俄克拉荷马大学化学 REU
- 批准号:
8804899 - 财政年份:1988
- 资助金额:
$ 28.71万 - 项目类别:
Continuing Grant
Carbon-13 NMR Study of Liquid Crystals
液晶的碳 13 NMR 研究
- 批准号:
8704223 - 财政年份:1987
- 资助金额:
$ 28.71万 - 项目类别:
Continuing Grant
Carbon-13 NMR Study on Liquid Crystal Solutions (Chemistry)
液晶溶液的碳 13 NMR 研究(化学)
- 批准号:
8318840 - 财政年份:1984
- 资助金额:
$ 28.71万 - 项目类别:
Continuing Grant
Nuclear Magnetic Resonance Study of Liquid Crystalline Polypeptide Solutions
液晶多肽溶液的核磁共振研究
- 批准号:
7204771 - 财政年份:1972
- 资助金额:
$ 28.71万 - 项目类别:
Standard Grant
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