Physical Properties of Strongly Correlated Quantum Liquids

强相关量子液体的物理性质

• 批准号: 9411574
• 负责人: Xiao-Gang Wen
• 金额: $ 16.2万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-11-01 至 1997-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9411574&HistoricalAwards=false
• 关键词: Physical; Properties; Strongly; Correlated; Quantum

9411574 Wen This theoretical research will deal with strongly correlated electron systems, one of the most important current problems in condensed matter physics. Strongly correlated electron systems include high temperature superconductors, fractional quantum Hall systems and mesoscopic devices. Research will be conducted on a variety of topics including: (1) the noise spectrum of tunneling and transport of correlated electron systems in mesoscopic devices. Better understanding of noise spectrum will increase our knowledge of the response of mesoscopic devices at high frequencies. The noise spectrum is also a powerful probe of correlation dynamics. (2) the relation between the fractional quantum Hall effect and the dirty boson problem will be studied. (3) studies will be conducted on the new class of non-abelian fractional quantum Hall states. (4) in strongly correlated metals slow spin fluctuations in high temperature superconductors will be compared to slow density fluctuations in the fractional quantum Hall effect. In particular, the interaction between electrons and slow fluctuations yields Cherenkov radiation. A theory of this Cherenkov radiation will be developed for these strongly correlated metals. %%% Theoretical research will be conducted on a variety of topics dealing with strongly correlated electron systems. These systems are one of the most challenging problems in contemporary physics. Topics include the high temperature superconductors and the fractional quantum Hall effect. ***

9411574 文 这项理论研究将涉及强关联电子系统，这是当前凝聚态物理中最重要的问题之一。 强相关电子系统包括高温超导体、分数量子霍尔系统和介观器件。 研究将针对各种主题进行，包括：（1）介观器件中相关电子系统的隧道效应和输运噪声谱。 更好地理解噪声频谱将增加我们对介观器件在高频下的响应的了解。 噪声谱也是相关动态的有力探针。 (2)研究分数量子霍尔效应与脏玻色子问题之间的关系。 (3)研究新型非阿贝尔分数量子霍尔态。 (4) 在强关联金属中，高温超导体中的慢自旋涨落将与分数量子霍尔效应中的慢密度涨落进行比较。 特别是，电子和缓慢涨落之间的相互作用会产生切伦科夫辐射。 将为这些强相关金属开发切伦科夫辐射理论。 %%% 将针对涉及强相关电子系统的各种主题进行理​​论研究。 这些系统是当代物理学中最具挑战性的问题之一。 主题包括高温超导体和分数量子霍尔效应。 ***