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Article: Extended Coulomb liquid of paired hardcore boson model on a pyrochlore lattice

TitleExtended Coulomb liquid of paired hardcore boson model on a pyrochlore lattice
Authors
Issue Date2020
PublisherAmerican Physical Society. The Journal's web site is located at https://journals.aps.org/prresearch/
Citation
Physical Review Research, 2020, v. 2 n. 4, p. article no. 042022 How to Cite?
AbstractThere is growing interest in the U(1) Coulomb liquid in both quantum materials in pyrochlore ice and cluster Mott insulators and cold-atom systems. We explore a paired hardcore boson model on a pyrochlore lattice. This model is equivalent to the XYZ spin model that was proposed for rare-earth-metal pyrochlores with 'dipole-octupole' doublets. Since our model has no sign problem for quantum Monte Carlo (QMC) simulations in a large parameter regime, we carry out both analytical and QMC calculations. We find that the U(1) Coulomb liquid is quite stable and spans a rather large portion of the phase diagram with boson pairing. Moreover, we numerically find a thermodynamic evidence that the boson pairing could induce a possible Z(2) liquid in the vicinity of the phase boundary between Coulomb liquid and Z(2) symmetry-broken phase. Besides the materials' relevance with quantum spin ice, we point to quantum simulation with cold atoms on optical lattices.
DescriptionHybrid open access
Persistent Identifierhttp://hdl.handle.net/10722/295860
ISSN
2023 Impact Factor: 3.5
2023 SCImago Journal Rankings: 1.689
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorHuang, CJ-
dc.contributor.authorLiu, C-
dc.contributor.authorMeng, Z-
dc.contributor.authorYu, Y-
dc.contributor.authorDeng, Y-
dc.contributor.authorChen, G-
dc.date.accessioned2021-02-08T08:15:04Z-
dc.date.available2021-02-08T08:15:04Z-
dc.date.issued2020-
dc.identifier.citationPhysical Review Research, 2020, v. 2 n. 4, p. article no. 042022-
dc.identifier.issn2643-1564-
dc.identifier.urihttp://hdl.handle.net/10722/295860-
dc.descriptionHybrid open access-
dc.description.abstractThere is growing interest in the U(1) Coulomb liquid in both quantum materials in pyrochlore ice and cluster Mott insulators and cold-atom systems. We explore a paired hardcore boson model on a pyrochlore lattice. This model is equivalent to the XYZ spin model that was proposed for rare-earth-metal pyrochlores with 'dipole-octupole' doublets. Since our model has no sign problem for quantum Monte Carlo (QMC) simulations in a large parameter regime, we carry out both analytical and QMC calculations. We find that the U(1) Coulomb liquid is quite stable and spans a rather large portion of the phase diagram with boson pairing. Moreover, we numerically find a thermodynamic evidence that the boson pairing could induce a possible Z(2) liquid in the vicinity of the phase boundary between Coulomb liquid and Z(2) symmetry-broken phase. Besides the materials' relevance with quantum spin ice, we point to quantum simulation with cold atoms on optical lattices.-
dc.languageeng-
dc.publisherAmerican Physical Society. The Journal's web site is located at https://journals.aps.org/prresearch/-
dc.relation.ispartofPhysical Review Research-
dc.rightsCopyright [2020] by The American Physical Society. This article is available online at [http://dx.doi.org/10.1103/PhysRevResearch.2.042022].-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.titleExtended Coulomb liquid of paired hardcore boson model on a pyrochlore lattice-
dc.typeArticle-
dc.identifier.emailHuang, CJ: phylinux@hku.hk-
dc.identifier.emailChen, G: gangchen@hku.hk-
dc.identifier.authorityChen, G=rp02491-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1103/PhysRevResearch.2.042022-
dc.identifier.scopuseid_2-s2.0-85101790463-
dc.identifier.hkuros321272-
dc.identifier.volume2-
dc.identifier.issue4-
dc.identifier.spagearticle no. 042022-
dc.identifier.epagearticle no. 042022-
dc.identifier.isiWOS:000605402200001-
dc.publisher.placeUnited States-

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