Papers › Finding hidden order in spin models with persistent homology
Finding hidden order in spin models with persistent homology
Bart Olsthoorn, Johan Hellsvik, Alexander V. Balatsky
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Persistent homology (PH) is a relatively new field in applied mathematics that studies the components and shapes of discrete data. In this work, we demonstrate that PH can be used as a universal framework to identify phases in spin models, including hidden order such as spin nematic ordering and spin liquids. By converting a small number of spin configurations to barcodes we obtain a descriptive picture of configuration space. Using dimensionality reduction to reduce the barcode space to color space leads to a visualization of the phase diagram.
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