Similar to humans going on journeys of self-discovery, quantum computers are also capable of deepening their understanding of their own foundations.
Researchers from Tohoku University and St. Paul's School, London, have developed a new algorithm that allows quantum computers to analyze and protect quantum entanglement -- a fundamental underpinning of quantum computing. These findings contribute to advancing our understanding of quantum entanglement and quantum technologies.
The study was published in Physical Review Letters on March 4, 2025.
Characterized by Einstein as "spooky action at a distance," quantum entanglement is a unique phenomenon in which particles remain interconnected regardless of the distance between them. This feature is one reason why quantum computers are so powerful.
"Quantum computers are built upon entanglement and now they themselves can also be used to study and understand entanglement," said Le Bin Ho, an assistant professor at the Frontier Research Institute for Interdisciplinary Sciences and Graduate School of Engineering at Tohoku University, and lead author of this study.
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