Density of states in coupled chains with off-diagonal disorder
Abstract
We compute the density of states (d.o.s.) in N coupled chains with random hopping. At zero energy, the d.o.s. shows a singularity that strongly depends on the parity of N. For odd N, the d.o.s. is proportional to 1/(E ( |E|)3), with and without time-reversal symmetry. For even N, the d.o.s. is proportional to |E| in the presence of time-reversal symmetry, while there is a pseudogap, d.o.s. proportional to E |E|, in the absence of time-reversal symmetry.
0
Turn this paper into a full lesson
ArcXiv compiles a staged curriculum from this paper: 8-12 lessons across beginner → advanced, synthesised section guides, visuals, flashcards, a quiz, exercises, and on-demand deep dives per section. Grounded in the abstract, never invented.