PASI: Workshop on Mottness and Quantum Criticality; Trinidad, June 2005

泛美高级研究所(PASI)由国家科学基金会和能源部共同支持，拟于2005年6月在西印度群岛的多巴哥举行，主题为Motness和量子临界性。这一主题涉及的问题是尚未解决的问题的核心问题，如铜氧化物材料和有机超导体中超导电性的起源，以及U和Ce金属间化合物(重费米子)中的非费米液体行为。这个为期两周的研究所将汇集该领域的领先研究人员，专注于这两个问题。PASI将由大约20名讲师和30名研究生组成，其中一半来自美国，一半来自美洲其他地区，由组委会挑选。PASI的焦点包括五个问题：1)量子临界点影响铜酸盐有限温度性质的实验证据是什么？2)在正常态和超导态下，在莫特尺度上的光谱重量转移起了什么作用？3)接近量子临界点的无序起到了什么作用？4)强关联系统的模型研究有没有预测能力？5)从低维系统中的有机超导体、重费米子和新的金属相等并行系统中可以学到什么？为了进一步扩大PASI的影响，组织者1)包括实验者和理论家，2)将会议的范围限制在上面提出的非常具体的问题上。研讨会将有充足的时间进行讨论，部分原因是为了能够进行协作，澄清所提出的问题。由于这些问题是当前关于强关联电子的辩论的核心，PASI是及时的，并可能在这一主题中产生进一步的活动。

0418330PhillipsA Pan-American Advanced Studies Institute (PASI), jointly supported by the NSF and Department of Energy is proposed on the topic of Mottness and Quantum Criticality, to be held in Tobago, West Indies during June, 2005. The topic involves problems that are central to the unsolved problems of the origin of superconductivity in the copper-oxide materials and organic superconductors, and non-Fermi liquid behavior in U and Ce intermetallics (heavy fermions). This two-week institute will bring together leading researchers in the field to focus on both of these problems. The PASI will consist of approximately 20 lecturers and 30 graduate students, half from the US and half from the rest of the Americas, to be selected by an organizing committee. Five questions will comprise the focus of the PASI: 1) What is the experimental evidence that quantum critical points influence finite temperature properties of the cuprates?, 2) What role does spectral weight transfer over the Mott scale play in the normal and superconducting states of the cuprates?, 3) What is the role played by disorder close to quantum critical points?, 4) Do model studies of strongly correlated systems have any predictive power? 5) What can be learned from parallel systems such as the organic superconductors, heavy fermions and novel metal phases in low dimensional systems? To further the impact of the PASI, the organizers have 1) included both experimentalists and theorists and 2) limited the scope of the conference to focus on the very specific questions posed above. Ample time in the workshop will be devotedto discussions, in part to enable collaborations that could elucidate the posed questions. As these questions are central to the current debate on strongly correlated electrons, the PASI is timely and is likely to generate further activity in the subject matter.