Pairwise Entanglement in Double-Tetrahedral Chain with Different Landé g-Factors of the Ising and Heisenberg Spins |
| L. Gálisová
Institute of Manufacturing Management, Faculty of Manufacturing Technologies with the seat in Prešov, Technical University of Košice, Bayerova 1, 080 01 Prešov, Slovakia |
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| The pairwise entanglement is exactly examined in the spin-1/2 Ising-Heisenberg double-tetrahedral chain with different Landé g-factors of the Ising and Heisenberg spins at zero and finite temperatures. It is shown that the phenomenon present in quantum non-chiral ground states is twice as strong as in quantum chiral ground states and that it gradually diminishes with increasing temperature until it completely vanishes at a certain threshold temperature. It is also demonstrated that the strong magnetic field maintains a weak thermal entanglement quite far from the saturation field, although the ground state is non-entangled. |
DOI:10.12693/APhysPolA.137.604 topics: Ising-Heisenberg chain, thermal entanglement, chirality, exact results |