Phase-controlled transport of Floquet-driven compact chiral photonic states
Abstract
The Aharonov-Bohm (AB) effect remains a cornerstone of fundamental and applied physics. In this work, we utilize the AB caging effect originated from an effective magnetic field induced by multiorbital interactions, creating an all flat band (FB) lattice system. Normally, FB states are known for being compact in space and having a zero tail; therefore, their mobility in a linear environment is generally understood as impossible. We propose a Floquet driving protocol in an all-FB photonic system to fully control the dynamics of localized photonic states. The modulation of the Hamiltonian along the propagation coordinate allows the translation of compact states in the direction of constructive interference, resulting in an effective stroboscopic quantum walk-like effect. We find that the traveling states exist in chiral pairs. We experimentally implement the Floquet driven protocol using femtosecond laser written photonic waveguides and demonstrate directional control of the propagation, determined by the relative phase of the input condition.
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BibTeX
@misc{caceresaravena2026phasecontrolled,
title = {{Phase-controlled transport of Floquet-driven compact chiral photonic states}},
author = {Gabriel Caceres-Aravena and Paloma Vildoso and Helena Drüeke and Rodrigo A. Vicencio},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2607.10415},
eprint = {2607.10415},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2607.10415},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Phase-controlled transport of Floquet-driven compact chiral photonic states
AU - Gabriel Caceres-Aravena
AU - Paloma Vildoso
AU - Helena Drüeke
AU - Rodrigo A. Vicencio
PY - 2026
DA - 2026/09/14
PB - arXiv
DO - 10.48550/arxiv.2607.10415
UR - https://arxiv.org/abs/2607.10415
AB - The Aharonov-Bohm (AB) effect remains a cornerstone of fundamental and applied physics. In this work, we utilize the AB caging effect originated from an effective magnetic field induced by multiorbital interactions, creating an all flat band (FB) lattice system. Normally, FB states are known for being compact in space and having a zero tail; therefore, their mobility in a linear environment is generally understood as impossible. We propose a Floquet driving protocol in an all-FB photonic system to fully control the dynamics of localized photonic states. The modulation of the Hamiltonian along the propagation coordinate allows the translation of compact states in the direction of constructive interference, resulting in an effective stroboscopic quantum walk-like effect. We find that the traveling states exist in chiral pairs. We experimentally implement the Floquet driven protocol using femtosecond laser written photonic waveguides and demonstrate directional control of the propagation, determined by the relative phase of the input condition.
ER -