Floquet Insulators and Lattice Fermions
Jun 28, 202313 pages
Published in:
- Phys.Rev.Lett. 132 (2024) 13, 136601
- Published: Mar 26, 2024
e-Print:
- 2306.16463 [quant-ph]
DOI:
- 10.1103/PhysRevLett.132.136601 (publication)
View in:
Citations per year
Abstract: (APS)
Floquet insulators are periodically driven quantum systems that can host novel topological phases as a function of the drive parameters. These new phases exhibit features reminiscent of fermion doubling in discrete-time lattice fermion theories. We make this suggestion concrete by mapping the spectrum of a noninteracting Floquet insulator for certain drive parameters onto that of a discrete-time lattice fermion theory with a time-independent Hamiltonian. The resulting Hamiltonian is distinct from the Floquet Hamiltonian that generates stroboscopic dynamics. It can take the form of a discrete-time Su-Schrieffer-Heeger model with half the number of spatial sites of the original model, or of a Wilson-Dirac theory with one quarter of the spatial sites.Note:
- Figure label corrected
References(0)
Figures(4)
Loading ...