Quantum theory has been successfully validated in numerous laboratory experiments. But
would such a theory, which effectively describes the behavior of microscopic physical …

Quantum key distribution (QKD) constitutes a symmetric secret key negotiation protocol
capable of maintaining information-theoretic security. Given the recent advances in QKD …

Developments in technologies, attitudes and investment are transforming the space
environment, achieving greater accessibility for an increasing number of parties. New and …

Current satellite-based quantum key distribution (QKD) is limited to nighttime operations,
and the reliance on microwave communication for key distillation leads to significant delays …

Quantum key distribution (QKD) offers future proof security based on fundamental laws of
physics. Long-distance QKD spanning regions such as the United Kingdom (UK) may …

The establishment of a world-wide quantum communication network relies on the synergistic
integration of satellite-based links and fiber-based networks. The first are helpful for long …

Recently, the availability of innovative and affordable COTS (Commercial Off‐The‐Shelf)
technological solutions and the ever‐improving results of microelectronics and …

Significant progress has been made in satellite-based quantum key distribution (QKD), and
urgent follow-up work is to explore the optimal solution for building practical quantum …

Quantum key distribution from satellites becomes particularly valuable when it can be used
on a large network and on-demand to provide a symmetric encryption key to any two nodes …

To build a global quantum-communication network, low-transmission, fiber-based
communication channels can be supplemented by using a free-space channel between a …