Response function of four-dimensional topological insulator

• المؤلف الرئيسي: Theofilus, Dustin Erhard
• مؤلفون آخرون: Chong Yidong
• التنسيق: Final Year Project
• اللغة: English
• منشور في: Nanyang Technological University 2024
• الموضوعات: Physics; Topological insulator; Haldane lattice; Four-dimensional lattice; Linear response theory; First chern number; Hall conductivity; Edge currents
• الوصول للمادة أونلاين: https://hdl.handle.net/10356/175654
• المؤسسة: Nanyang Technological University

In this paper, we apply linear response theory to investigate the current-current response in four-dimensional topological insulator (TI). For lattices with periodic boundary conditions, we show that the bulk DC response function is proportional to the first Chern Number (1CN) and equal to the 2D...