- Letter
Eight-dimensional topological systems simulated using time-space crystalline structures
Phys. Rev. B 108, L020303 – Published 19 July, 2023
DOI: https://doi.org/10.1103/PhysRevB.108.L020303
Abstract
We demonstrate the possibility of using time-space crystalline structures to simulate eight-dimensional systems based on only two physical dimensions. A suitable choice of system parameters allows us to obtain a gapped energy spectrum, making topological effects become relevant. The nontrivial topology of the system is evinced by considering the adiabatic state pumping along temporal and spatial crystalline directions. Analysis of the system is facilitated by rewriting the system Hamiltonian in a tight-binding form, thereby putting space, time, and the additional synthetic dimensions on an equal footing.
