Condensed Matter Theory

9714055吉尔文有一个广泛的标题，这是一个多项目补助金，以考虑各种各样的凝聚态理论的当前问题。这些PI在印第安纳州大学聚集的小组，被公认为是许多前沿问题的领导者。 该更新补助金包含约瑟夫森结阵列相变的项目，分析结合密度矩阵重整化群和动态平均场理论的可能数值方法，skyrmion晶格相变的可能性，非常低温度下的量子相变，超流体4He在受限的几何形状，它被认为是一个原型之间的复杂的相互作用强关联和无序，量子霍尔边缘状态和超小超导晶粒。 %此补助金继续支持这两个高级PI的前沿工作。 他们被公认为是世界上最好的创新研究，年轻学生和同事的有效培养和社区服务，包括最近在NRC和NSF的小组。 他们的研究计划涵盖了广泛的主题，包括高磁场下的电子气（和超导性），试图改善超小粒子的数值技术和超导性。 ***

9714055 Girvin With a wide ranging title, this is a multi-project grant to consider a large variety of current problems in condensed matter theory. The group which these PI have assembled at the Indiana University, is generally acknowledged as a leader in numerous forefront problems. This renewal grant contains projects on phase transitions in Josephson junction arrays, on an analysis of possible numerical methods incorporating both the density matrix renormalization group and also the dynamic mean field theory, possibility of a skyrmion lattice phase transition, quantum phase transitions at very low temperatures, superfluid 4He in confined geometries where it is believed to be a prototype for the complex interplay between strong correlation and disorder, quantum Hall edge states and ultra-small superconducting grains. %%% This grant continues to support the cutting-edge work of these two senior PI's. They are acknowledged as amongst the world's best in innovative research, effective nurturing of younger students and colleagues and community service, including the recent panels at NRC and at NSF. Their research program spans a broad spectrum of topics including electron gas (and superconductivity) at high magnetic fields, attempts to improve numerical techniques and superconductivity in ultra-small particles. ***