# High-dimensional temporal mode propagation in a turbulent environment

## TL;DR

This paper explores the use of high-dimensional temporal modes of photonic quantum states to enable robust, high-efficiency quantum key distribution in maritime environments despite turbulence and weather challenges.

## Contribution

It demonstrates the potential of high-dimensional temporal modes for persistent quantum communication and analyzes environmental effects on fidelity and entanglement.

## Key findings

- High-dimensional temporal modes enable robust quantum communication in turbulent environments.
- Parameter regimes for high-fidelity quantum information transmission are identified.
- Turbulence impacts fidelity and entanglement degree in maritime settings.

## Abstract

Temporal modes of photonic quantum states provide a new framework to develop a robust free-space quantum key distribution (QKD) scheme in a maritime environment. We show that the high-dimensional temporal modes can be used to fulfill a persistent communication channel to achieve high photon-efficiency even in severe weather conditions. We identify the parameter regimes that allow for a high-fidelity quantum information transmission. We also examine how the turbulent environment affects fidelity and entanglement degree in various environmental settings.