2D Zak Phase Landscape in Photonic Discrete-Time Quantum Walks

GRACIANA PUENTES

Quantum Reports

MDPI

Lugar: Basel; Año: 2023 vol. 1 p. 1 - 17

2624-960X

We present a study of the 2D Zak phase landscape in photonic discrete-time quantum walk (DTQW) protocols. In particular, we report numerical results for three different DTQW scenarios which preserve spatial inversion symmetry (SIS) and time-reversal symmetry (TRS), while presenting a non-trivial Zak phase structure, as a consequence of a non-vanishing Berry connection. Additionally, we propose a novel approach to break TRS in photonic systems, while preserving a vanishing Berry curvature.