Floquet topological phase transitions in a periodically quenched dimer
نویسندگان
چکیده
We report on the theoretical investigation of topological properties a periodically quenched one-dimensional dimerized lattice where piece-wise constant Hamiltonian switches from $h_1$ to $h_2$ at partition time $t_p$ within each driving period $T$. examine different dimerization patterns for and interplay with parameters that lead emergence states both zero energy edge Brillouin-Floquet quasi-energy zone. illustrate phenomena, including occurrence in semimetal spectrum, transitions, generation zero-energy trivial snapshots. The role symmetries our results is also discussed.
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ژورنال
عنوان ژورنال: Physical review
سال: 2022
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevb.106.224306