Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/40956
Título: Tuning the thermal entanglement in a Ising-XXZ diamond chain with two impurities
Palavras-chave: Thermal entanglement
Spin model
Ising-XXZ diamond chain
Entrelaçamento térmico
Data do documento: 2019
Editor: Springer
Citação: CARVALHO, I. M. et al. Tuning the thermal entanglement in a Ising-XXZ diamond chain with two impurities. Quantum Information Processing, [S.l.], v. 18, p. 1-13, 2019. DOI: https://doi.org/10.1007/s11128-019-2253-2.
Resumo: We study the local thermal entanglement in a spin-1/2 Ising-XXZ diamond structure with two impurities. In this spin chain, we have two impurities with an isolated XXZ dimer between them. We focus on the study of the thermal entanglement in this dimer. The main goal of this paper is to provide a good understanding of the effect of impurities in the entanglement of the model. This model is exactly solved by a rigorous treatment based on the transfer-matrix method. Our results show that the entanglement can be tuned by varying the impurities parameters in this system. In addition, it is shown that the thermal entanglement for such a model exhibits a clear performance improvement when we control and manipulate the impurities compared to the original model without impurities. Finally, the impurities can be manipulated to locally control the thermal entanglement, unlike the original model where it is done globally.
URI: https://link.springer.com/article/10.1007/s11128-019-2253-2
http://repositorio.ufla.br/jspui/handle/1/40956
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