Preprint
Sep 2026
Thermal entanglement on a frustrated tetrahedron: Probing quantum resources through concurrence and stabilizer structure
In a frustrated spin system, highly entangled eigenstates can form a separable thermal mixture. We study this distinction for four spin-$1/2$ moments on a tetrahedron, the elementary unit of the pyrochlore lattice, with the general four-parameter exchange Hamiltonian. Tetrahedral symmetry allows a restricted search ove...
Reza Pourkhodabakhshi, Francis Dominie, D. Gajera et al.
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