Scientists document the presence of quantum spin liquids, a never-before-seen state of matter

Phys.org  December 2, 2021
To reproduce the microscopic physics found in condensed matter systems an international team of researchers (USA – Harvard University, MIT, Austria) used a simulator that allows the researchers to create programmable shapes like squares, honeycombs, or triangular lattices to engineer different interactions and entanglements between ultracold atoms. Quantum spin liquids display none of that magnetic order because, essentially, there is a third spin added, turning the checker box pattern to a triangular pattern making it a “frustrated” magnet where the electron spins can’t stabilize in a single direction. The researchers used the simulator to create their own frustrated lattice pattern, placing the atoms there to interact and entangle. They measured and analyzed the topological strings that connected the atoms after the whole structure entangled. The presence and analysis of those strings signified that quantum correlations were happening and that the quantum spin liquid state of matter had emerged. They plan to use the programable quantum simulator to continue to investigate quantum spin liquids and how they can be used to create the more robust qubits…read more. TECHNICAL ARTICLE 

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