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Quantum Information Processing

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01.10.2017

Exploring the tripartite entanglement and quantum phase transition in the \(XXZ+h\) model

verfasst von: Wajid Joyia, Khalid Khan

Erschienen in: Quantum Information Processing | Ausgabe 10/2017

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Abstract

The behavior of bipartite and tripartite entanglement in Heisenberg \(XXZ+h\) spins chain is investigated with the size of system using the approach of quantum renormalization group method. In thermodynamics limit, both types of entanglement exhibit quantum phase transition (QPT). The boundary of QPT links the phases of saturated entanglement and zero entanglement. The first derivative of both entanglements becomes discontinuous at the critical point, which corresponds to the second-order phase transition. Furthermore, the amount of saturated bipartite entanglement strongly depends on relative positions of spins, while tripartite entanglement is robust than bipartite entanglement. It turns out that the tripartite entanglement can be a better candidate than bipartite entanglement for analyzing QPT and implementing quantum information tasks.

Vorheriger Artikel Hyperentanglement concentration for polarization–spatial–time-bin hyperentangled photon systems with linear optics

Nächster Artikel Quantum discord protection of a two-qutrit V-type atomic system from decoherence by partially collapsing measurements

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Titel: Exploring the tripartite entanglement and quantum phase transition in the model
verfasst von: Wajid Joyia
Khalid Khan
Publikationsdatum: 01.10.2017
Verlag: Springer US
Erschienen in: Quantum Information Processing / Ausgabe 10/2017
Print ISSN: 1570-0755
Elektronische ISSN: 1573-1332
DOI: https://doi.org/10.1007/s11128-017-1693-9

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