Demonstration of Entanglement in Coupled Josephson-Junction Qubits

耦合约瑟夫森结量子位中的纠缠演示

• 批准号: 0323261
• 负责人: Frederick Wellstood
• 金额: $ 69.22万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-07-15 至 2006-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0323261&HistoricalAwards=false
• 关键词: Demonstration; Entanglement; Coupled; Josephson; Junction

EIA-0323261F. C. WellstoodUniversity of Maryland College ParkDemonstration of Entanglement in Coupled Josephson-Junction Qubits This project is a first step toward a scalable solid-state quantum computer with implications for cryptography, national security, and scientific computing. Under this project, the energy levels, coherence times, state manipulation, gate operations, and quantum behavior of systems composed of current-biased Josephson junctions are being examined both examining experimentally and theoretically. Building upon prior spectroscopic studies of two capacitively coupled qubits, the entanglement of two or more qubits, not only coupled capacitively but also coupled by means of switchable active elements are being investigated. Switchable coupling may be crucial for the gate operations of a quantum computer with its large number of qubits. Theoretical analysis is aiding in designing experiments and interpreting results. This project supports training of graduate and undergraduate students and provides opportunities for women, minorities, and high-school students to participate.

EIA-0323261F。 C. Wellstood 马里兰大学学院公园耦合约瑟夫森结量子比特中的纠缠演示 该项目是迈向可扩展固态量子计算机的第一步，对密码学、国家安全和科学计算具有重要意义。在这个项目下，由电流偏置约瑟夫森结组成的系统的能级、相干时间、状态操纵、门操作和量子行为正在通过实验和理论进行检验。基于先前对两个电容耦合量子位的光谱研究，正在研究两个或多个量子位的纠缠，不仅电容耦合，而且通过可切换有源元件耦合。可切换耦合对于具有大量量子位的量子计算机的门操作可能至关重要。理论分析有助于设计实验和解释结果。该项目支持研究生和本科生的培训，并为女性、少数民族和高中生提供参与机会。