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arXiv · 2406.13830

Quantum spin systems: toroidal classification and geometric duality

Vahid Azimi-Mousolou·Anders Bergman·Anna Delin·Olle Eriksson·Manuel Pereiro·Danny Thonig·Erik Sjöqvist
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Abstract

Toroidal classification and geometric duality in quantum spin systems is presented. Through our classification and duality, we reveal that various bipartite quantum features in magnon-systems can manifest equivalently in both bipartite ferromagnetic and antiferromagnetic materials, based upon the availability of relevant Hamiltonian parameters. Additionally, the results highlight the antiferromagnetic regime as an ultra-fast dual counterpart to the ferromagnetic regime, both exhibiting identical capabilities for quantum spintronics and technological applications. Concrete illustrations are provided, demonstrating how splitting and squeezing types of two-mode magnon quantum correlations can be realized across ferro- and antiferromagnetic regimes.

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Vahid Azimi-Mousolou, Anders Bergman, Anna Delin, Olle Eriksson, Manuel Pereiro, Danny Thonig, Erik Sjöqvist. 2024-06-19. Quantum spin systems: toroidal classification and geometric duality. https://arxiv.org/abs/2406.13830

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