Physicists Create Long-Sought Topological Quantum States
Briefly

The coat of arms of Italy's aristocratic House of Borromeo contains an unsettling symbol: an arrangement of three interlocking rings that that cannot be pulled apart but doesn't contain any linked pairs.That same three-way linkage is an unmistakable signature of one of the most coveted phenomena in quantum physics and it has now been observed for the first time.
Read at www.nature.com
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