Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/81203
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dc.contributor.authorTzeng, Yu-Chinen
dc.contributor.authorDai, Lien
dc.contributor.authorChung, Ming-Chiangen
dc.contributor.authorAmico, Luigien
dc.contributor.authorKwek, Leong-Chuanen
dc.date.accessioned2018-11-09T04:43:05Zen
dc.date.accessioned2019-12-06T14:23:32Z-
dc.date.available2018-11-09T04:43:05Zen
dc.date.available2019-12-06T14:23:32Z-
dc.date.issued2016en
dc.identifier.citationTzeng, Y.-C., Dai, L., Chung, M.-C., Amico, L., & Kwek, L.-C. (2016). Entanglement convertibility by sweeping through the quantum phases of the alternating bonds XXZ chain. Scientific Reports, 6, 26453-. doi:10.1038/srep26453en
dc.identifier.urihttps://hdl.handle.net/10356/81203-
dc.description.abstractWe study the entanglement structure and the topological edge states of the ground state of the spin-1/2 XXZ model with bond alternation. We employ parity-density matrix renormalization group with periodic boundary conditions. The finite-size scaling of Rényi entropies S2 and S∞ are used to construct the phase diagram of the system. The phase diagram displays three possible phases: Haldane type (an example of symmetry protected topological ordered phases), Classical Dimer and Néel phases, the latter bounded by two continuous quantum phase transitions. The entanglement and non-locality in the ground state are studied and quantified by the entanglement convertibility. We found that, at small spatial scales, the ground state is not convertible within the topological Haldane dimer phase. The phenomenology we observe can be described in terms of correlations between edge states. We found that the entanglement spectrum also exhibits a distinctive response in the topological phase: the effective rank of the reduced density matrix displays a specifically large “susceptibility” in the topological phase. These findings support the idea that although the topological order in the ground state cannot be detected by local inspection, the ground state response at local scale can tell the topological phases apart from the non-topological phases.en
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en
dc.description.sponsorshipMOE (Min. of Education, S’pore)en
dc.format.extent13 p.en
dc.language.isoenen
dc.relation.ispartofseriesScientific Reportsen
dc.rights© 2016 The Authors (Nature Publishing Group). This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/en
dc.subjectDRNTU::Science::Physicsen
dc.subjectQuantum Phase Transitionen
dc.subjectEntanglement Convertibilityen
dc.titleEntanglement convertibility by sweeping through the quantum phases of the alternating bonds XXZ chainen
dc.typeJournal Articleen
dc.contributor.researchInstitute of Advanced Studiesen
dc.identifier.doi10.1038/srep26453en
dc.description.versionPublished versionen
dc.identifier.pmid27216970-
item.fulltextWith Fulltext-
item.grantfulltextopen-
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