Metallic nanograins: superconducting correlations, Josephson tunneling and conformal field theory

对几纳米大小的铝颗粒的实验研究揭示了意想不到的物理特性，包括导致大块超导性的配对相互作用。我们之前的理论工作表明，可以在BCS模型的精确解的框架内获得关于这些纳米颗粒的精确信息。该项目将继续我们在这一领域的工作，重点是研究耦合纳米颗粒之间约瑟夫森隧道的性质。该项目的结果将在新兴技术中有重要的应用，如纳米级约瑟夫森结的实现。

Experimental studies of aluminium grains which are a few nanometres in size have exposed unexpected physical characteristics, including pairing interactions which are responsible for bulk superconductivity. Our previous theoretical work has shown that precise information about these nanograins can be gained in the framework of the exact solution of the BCS model. This project will continue our work in this area with an emphasis on investigating the nature of Josephson tunneling between coupled nanograins. The results of this project will have important applications in emerging technologies such as the implementation of Josephson junctions of nanoscale size.