Abstract
With the increasing number of commercial 5G deployments, research on
Beyond 5G (B5G) and 6G has started in earnest. Although it is too early
to clearly identify what 6G systems will look like or how they will be
designed, it is certain that 6G systems will support novel use cases
with challenging Key Performance Indicators (KPIs), which will be
empowered by new enabling technologies and network architectures. In
parallel with the evolution of cellular systems from 5G towards 6G,
Quantum Information Technology (QIT) has been evolving rapidly in recent
years in terms of quantum communications and quantum computing. It is
envisioned that QIT will enable and boost future 6G systems from both
communication and computing perspectives. For example, secure quantum
communications such as Quantum Key Distribution (QKD) can be leveraged
to improve 6G security. This paper aims to provide a technology-driven
and visionary description and exploration on how QIT can be leveraged
for future 6G wireless networks.