Floquet vortex states induced by light carrying the orbital angular momentum

TL;DR

This paper introduces a method to generate and analyze Floquet vortex states in 2D semiconductors using light with orbital angular momentum, revealing their tunability and potential for quantum state engineering.

Contribution

It presents a novel scheme for creating Floquet vortex states with light carrying orbital angular momentum, including analytical and numerical analysis of their properties.

Findings

Floquet vortex states are similar to superconducting vortex states.

These states exhibit wide tunability.

Potential applications in quantum state engineering.

Abstract

We propose a scheme to create an electronic Floquet vortex state by irradiating a two-dimensional semiconductor with the laser light carrying non-zero orbital angular momentum. We analytically and numerically study the properties of the Floquet vortex states, with the methods analogous to the ones previously applied to the analysis of superconducting vortex states. We show that such Floquet vortex states are similar to the superconducting vortex states, and they exhibit a wide range of tunability. To illustrate the potential utility of such tunability, we show how such states could be used for quantum state engineering.