Topological materials, known for their edge states robust against local perturbations, hold promise for next-generation quantum technologies, but remain scarce in nature and challenging to realize in static systems. The Su-Schrieffer-Heeger chain is a one-dimensional system with a well-known topological phase protected by chiral symmetry, although its static control is limited. To overcome these limitations, we propose to use high-frequency monochromatic driving and modulated amplitude pulses to induce and switch the Floquet topological phases even when the chiral symmetry is dynamically broken. Using a Kramers-Henneberger-like transformation, we encode all Floquet sidebands into a single effective Hamiltonian. We demonstrate that both monochromatic and experimental pulse protocols (Gaussian and fast-beating envelopes) can induce topological edge states, enabling dynamic phase switching. Notably, fast-beating modulations require significantly lower-field amplitudes than monochromatic ones, especially with a larger intracell dimer separation. Our findings offer an experimentally feasible route for Floquet engineering, paving the way for ultrafast and energy efficient control of topological phases in quantum platforms, opening up different possibilities in the field of dynamic quantum materials.

Close

PrevNext

View figure in article

• Topological phase transition
• Floquet systems
• Su-Schrieffer-Heeger model