Abstract
The behaviour of multipartite quantum discord and quantum coherence in Heisenberg–Ising bond alternating spin-1 / 2 chain are computed by exploiting the method of quantum renormalisation group (QRG). At larger number of iterations, both quantum coherence and quantum discord have found to exhibit quantum phase transition (QPT) between the spin fluid phase and the Neel phase. In addition, at the critical point, the first derivative of both quantum coherence and quantum discord have shown a non-analytical behaviour. Finally, the scaling behaviour of both quantum coherence and quantum discord has been investigated.
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Joyia, W. Multipartite quantum discord and quantum coherence in Heisenberg–Ising bond alternating chain. Pramana - J Phys 93, 94 (2019). https://doi.org/10.1007/s12043-019-1859-3
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DOI: https://doi.org/10.1007/s12043-019-1859-3