Pairwise entanglement in double-tetrahedral chain with different Landé g-factors of the Ising and Heisenberg spins

Abstract

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.

6 pages, 3 figures, presented at CSMAG'19 conference

References in corpus (2)

• Exactly solvable Ising--Heisenberg chain with triangular XXZ-Heisenberg plaquettes
• Macroscopic ground-state degeneracy and magnetocaloric effect in the exactly solvable spin-1/2 Ising-Heisenberg double-tetrahedral chain

Cited by in corpus (3)

• Towards low-temperature peculiarities of thermodynamic quantities for decorated spin chains
• Unconventional low temperature features in the one-dimensional frustrated $q$-state Potts model
• Ground State, Magnetization Process and Bipartite Quantum Entanglement of a Spin-1/2 Ising-Heisenberg Model on Planar Lattices of Interconnected Trigonal Bipyramids