In a leap forward for quantum technology, researchers at the University of Science and Technology of China have demonstrated a new method for storing and retrieving quantum information, published in the National Science Review. This innovation could pave the way for creating large-scale quantum networks, overcoming one of the key challenges in the field: transmission loss over long distances.
Quantum memories are critical components in quantum communication and computing, acting as devices that store and synchronize quantum information. Traditionally, short-distance quantum entanglement could not be effectively connected over longer distances due to photon losses during transmission.
“Photonic integrated quantum memories are essential for the construction of scalable quantum networks,” the researchers note in their paper.
However, by employing a technique known as spin-wave quantum storage, the study has unlocked a method to extend storage times and improve reliability, marking a possible milestone in quantum technology.
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