Discovery of Universal Laws of Quantum Entanglement Across Dimensions

Unraveling the structure of quantum entanglement is a central challenge in both theoretical physics and quantum information science. However, much of the research to date has been limited to 1+1 dimensions. Analyzing entanglement structures becomes significantly more difficult beyond 1+1 dimensions, and new methods for investigating higher-dimensional entanglement structures have been long sought.

A collaborative research group including Yuya Kusuki (Visiting Scientist, iTHEMS) focused on a technique known as the "thermal effective theory," which has recently made significant advances in analyzing higher-dimensional theories in particle physics. By introducing this approach to quantum information, they successfully uncovered universal behaviors underlying the structure of quantum entanglement in quantum systems of arbitrary dimensions.

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