Story perspectives

Breakthroughs in Quantum Memory Boost Long-Distance Communication

11/20/2025

Summary

Story summary

Researchers at the University of Science and Technology of China achieved photonic quantum memory with storage times above 27 seconds and 88% fidelity using europium-doped yttrium silicate crystals.
This development overcomes optical absorption limits and supports long-distance quantum communication.
Separately, scientists are enhancing tin-vacancy centers in diamond for quantum networks.
Dutch startup Microalign aims to address scalability with fiber array connectors and plans a manufacturing facility.

History

Historical Context

In 2023, researchers at the University of Science and Technology of China achieved a breakthrough in quantum technology by developing photonic quantum memory with 88% fidelity, enhancing storage of quantum information for over 27 seconds. This builds on Stephen Wiesner's 1981 introduction of quantum cryptography, which laid the groundwork for secure communication, potentially revolutionizing data processing and long-distance quantum networks.

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Story summary

Researchers at the University of Science and Technology of China achieved photonic quantum memory with storage times above 27 seconds and 88% fidelity using europium-doped yttrium silicate crystals.
This development overcomes optical absorption limits and supports long-distance quantum communication.
Separately, scientists are enhancing tin-vacancy centers in diamond for quantum networks.
Dutch startup Microalign aims to address scalability with fiber array connectors and plans a manufacturing facility.

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