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dc.creatorRojas, Onofre-
dc.creatorStrečka, Jozef-
dc.creatorLyra, Marcelo L.-
dc.date.accessioned2020-11-13T23:34:04Z-
dc.date.available2020-11-13T23:34:04Z-
dc.date.issued2013-05-03-
dc.identifier.citationROJAS, O.; STREČKA, J.; LYRA, M. L. Interplay between spin frustration and thermal entanglement in the exactly solved Ising-Heisenberg tetrahedral chain. Physics Letters A, [S.l.], v. 377, n. 12, p. 920-926, May 2013. DOI: 10.1016/j.physleta.2013.02.013.pt_BR
dc.identifier.urihttps://www.sciencedirect.com/science/article/abs/pii/S0375960113001539pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/45511-
dc.description.abstractThe spin-1/2 Ising–Heisenberg tetrahedral chain is exactly solved using its local gauge symmetry (the total spin of the Heisenberg bonds is locally conserved) and the transfer-matrix approach. Exact results derived for spin–spin correlation functions are employed to obtain the frustration temperature. In addition, we have exactly calculated a concurrence quantifying thermal entanglement. It is shown that the frustration and threshold temperature coincide at sufficiently low temperatures, while they exhibit a very different behavior in the high-temperature region when tending towards completely different asymptotic limits. The threshold temperature additionally shows a notable reentrant behavior when it extends over a narrow temperature region above the classical ground state without any quantum correlations.pt_BR
dc.languageen_USpt_BR
dc.publisherElsevierpt_BR
dc.rightsrestrictAccesspt_BR
dc.sourcePhysics Letters Apt_BR
dc.subjectFrustration temperaturept_BR
dc.subjectThermal entanglementpt_BR
dc.subjectThreshold temperaturept_BR
dc.subjectIsing-Heisenberg chainpt_BR
dc.titleInterplay between spin frustration and thermal entanglement in the exactly solved Ising-Heisenberg tetrahedral chainpt_BR
dc.typeArtigopt_BR
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