Floquet Winding Metals

TL;DR

This paper introduces a photonics-based scattering matrix model that creates a Floquet metallic phase with unique topological properties, including bulk band winding and robust chiral edge states, enabling novel wavepacket dynamics.

Contribution

It presents a new theoretical model for a Floquet metallic phase combining topological winding and edge states, expanding the understanding of Floquet systems.

Findings

Demonstrates a Floquet metallic phase with bulk band winding

Shows wavepacket oscillations conserving initial momentum

Establishes a framework for studying winding Floquet systems

Abstract

We propose a generic scattering matrix model implementable in photonics to engineer a new Floquet metallic phase that combines two distinct topological properties: the winding of the bulk bands and the existence of robust chiral edge states. The winding of the bulk bands gives rise to a wavepacket oscillations in real space while conserving its initial momentum. Our findings open the way to the study of a new class of winding Floquet systems.