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- Publisher Website: 10.1038/s41535-022-00465-3
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- WOS: WOS:000808334100002
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Article: Quantum dynamics of topological strings in a frustrated Ising antiferromagnet
Title | Quantum dynamics of topological strings in a frustrated Ising antiferromagnet |
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Authors | |
Issue Date | 2022 |
Publisher | Springer Nature. The Journal's web site is located at http://www.nature.com/npjquantmats/ |
Citation | npj Quantum Materials, 2022, v. 7 n. 1, article no. 60 How to Cite? |
Abstract | We investigate the quantum dynamics of the antiferromagnetic transverse field Ising model on the triangular lattice through large-scale quantum Monte Carlo simulations and stochastic analytic continuation. This model effectively describes a series of triangular rare-earth compounds, for example, TmMgGaO4. At weak transverse field, we capture the excitations related to topological quantum strings, which exhibit continuum features described by XY chain along the strings and those in accord with ‘Luttinger string liquid’ in the perpendicular direction. The continuum features can be well understood from the perspective of topological strings. Furthermore, we identify the contribution of strings from the excitation spectrum. Our study provides characteristic features for the experimental search for string-related excitations and proposes a theoretical method to pinpoint topological excitations in the experimental spectra. |
Persistent Identifier | http://hdl.handle.net/10722/314438 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Zhou, Z | - |
dc.contributor.author | Liu, C | - |
dc.contributor.author | Yan, Z | - |
dc.contributor.author | Chen, Y | - |
dc.contributor.author | Zhang, XF | - |
dc.date.accessioned | 2022-07-22T05:24:32Z | - |
dc.date.available | 2022-07-22T05:24:32Z | - |
dc.date.issued | 2022 | - |
dc.identifier.citation | npj Quantum Materials, 2022, v. 7 n. 1, article no. 60 | - |
dc.identifier.uri | http://hdl.handle.net/10722/314438 | - |
dc.description.abstract | We investigate the quantum dynamics of the antiferromagnetic transverse field Ising model on the triangular lattice through large-scale quantum Monte Carlo simulations and stochastic analytic continuation. This model effectively describes a series of triangular rare-earth compounds, for example, TmMgGaO4. At weak transverse field, we capture the excitations related to topological quantum strings, which exhibit continuum features described by XY chain along the strings and those in accord with ‘Luttinger string liquid’ in the perpendicular direction. The continuum features can be well understood from the perspective of topological strings. Furthermore, we identify the contribution of strings from the excitation spectrum. Our study provides characteristic features for the experimental search for string-related excitations and proposes a theoretical method to pinpoint topological excitations in the experimental spectra. | - |
dc.language | eng | - |
dc.publisher | Springer Nature. The Journal's web site is located at http://www.nature.com/npjquantmats/ | - |
dc.relation.ispartof | npj Quantum Materials | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.title | Quantum dynamics of topological strings in a frustrated Ising antiferromagnet | - |
dc.type | Article | - |
dc.identifier.email | Yan, Z: zhengyan@hku.hk | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1038/s41535-022-00465-3 | - |
dc.identifier.scopus | eid_2-s2.0-85131728648 | - |
dc.identifier.hkuros | 334404 | - |
dc.identifier.hkuros | 340032 | - |
dc.identifier.volume | 7 | - |
dc.identifier.issue | 1 | - |
dc.identifier.spage | article no. 60 | - |
dc.identifier.epage | article no. 60 | - |
dc.identifier.eissn | 2397-4648 | - |
dc.identifier.isi | WOS:000808334100002 | - |
dc.identifier.issnl | 2397-4648 | - |