Quantum correlations in Heisenberg XY spin-1 and spin-1/2 model with Dzyaloshinskii–Moriya interactions

Autor:	Wajid Joyia
Rok vydání:	2015
Předmět:	Physics Quantum phase transition Quantum discord Physics and Astronomy (miscellaneous) Condensed matter physics Heisenberg model Quantum mechanics Qubit Condensed Matter::Strongly Correlated Electrons Quantum entanglement Qutrit Classical XY model Spin-½
Zdroj:	International Journal of Quantum Information. 13:1550035
ISSN:	1793-6918 0219-7499
Popis:	We study the quantum correlations in a spin-1/2 (qubit) and spin-1 (qutrit) Heisenberg XY model separately, based on quantum discord (QD) and measurement-induced disturbance (MID) respectively. We find the evidence of the first- and second-order quantum phase transition (QPT) in both spin-1/2 and spin-1 systems. The effect of the temperature, magnetic field and Dzyaloshinskii–Moriya (DM) interactions on QPT and quantum correlation are also investigated. Finally, we observed that the QD and MID are not only vigorous for higher spin systems but also more robust than entanglement.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d1a10081c57fe9e9d3efa2964ecbc1c7 https://doi.org/10.1142/s0219749915500355 Zobrazit plný text záznamu