Topologically constrained obstructed atomic limits in quasi-one-dimensional systems

Milan Damnjanovic; Ivanka Milosevic

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arXiv · 2412.18943

Topologically constrained obstructed atomic limits in quasi-one-dimensional systems

Milan Damnjanovic·Ivanka Milosevic

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Abstract

Possible forms of obstructed atomic limits in quasi-one-dimensional systems are studied using line group symmetry. This is accomplished by revisiting the standard theory with an emphasis on its group-theoretical background, synthesizing the insights into a theorem that effectively identifies potential cases. The framework is then applied across the classes of quasi-one-dimensional systems, where the obstructed atomic limit serves as the primary criterion for topological characterization. The results are systematically organized and displayed, complemented by several illustrative examples.

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Milan Damnjanovic, Ivanka Milosevic. 2024-12-25. Topologically constrained obstructed atomic limits in quasi-one-dimensional systems. https://arxiv.org/abs/2412.18943

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