Toshiba and LQUOM Sign Joint Research Agreement for Long-Distance Quantum Key Distribution

Toshiba and LQUOM Advance Quantum Key Distribution Research for Future Networks

Toshiba Corporation and LQUOM Inc. have signed a joint research agreement to explore long-distance Quantum Key Distribution using quantum repeater technology.

The collaboration focuses on addressing key challenges in extending QKD over longer distances, which is essential for building future quantum communication networks and enabling the quantum internet. QKD is a secure communication method based on quantum mechanics and is considered resistant to decryption, including by quantum computers.

Quantum repeaters play a critical role in maintaining the integrity of quantum states over long distances, making them a foundational technology for scaling quantum networks.

The research project will run from March 2026 to March 2027. Toshiba will focus on QKD protocols and system architectures, while LQUOM will study quantum repeater designs. The companies will evaluate different combinations of these technologies to identify practical approaches for long-distance implementation.