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Article: Monte Carlo Study of Lattice Compact Quantum Electrodynamics with Fermionic Matter: The Parent State of Quantum Phases

TitleMonte Carlo Study of Lattice Compact Quantum Electrodynamics with Fermionic Matter: The Parent State of Quantum Phases
Authors
Issue Date2019
PublisherAmerican Physical Society. The Journal's web site is located at http://journals.aps.org/prx/
Citation
Physical Review X, 2019, v. 9 n. 2, article no. 021022 , p. 1-17 How to Cite?
AbstractThe interplay between lattice gauge theories and fermionic matter accounts for fundamental physical phenomena ranging from the deconfinement of quarks in particle physics to quantum spin liquid with fractionalized anyons and emergent gauge structures in condensedmatter physics. However, except for certain limits (for instance, a large number of flavors of matter fields), analytical methods can provide few concrete results. Here we show that the problem of compact U(1) lattice gauge theory coupled to fermionic matter in (2+1) D is possible to access via sign-problem-free quantum Monte Carlo simulations. One can hence map out the phase diagramas a function of fermion flavors and the strength of gauge fluctuations. By increasing the coupling constant of the gauge field, gauge confinement in the form of various spontaneous-symmetry-breaking phases such as the valence-bond solid (VBS) and Neel antiferromagnet emerge. Deconfined phases with algebraic spin and VBS correlation functions are also observed. Such deconfined phases are incarnations of exotic states of matter, i.e., the algebraic spin liquid, which is generally viewed as the parent state of various quantum phases. The phase transitions between the deconfined and confined phases, as well as that between the different confined phases provide various manifestations of deconfined quantum criticality. In particular, for four flavors N-f = 4, our data suggest a continuous quantum phase transition between the VBS and Neel order. We also provide preliminary theoretical analysis for these quantum phase transitions.
Persistent Identifierhttp://hdl.handle.net/10722/270102
ISSN
2017 Impact Factor: 14.385
2015 SCImago Journal Rankings: 5.040
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorXu, XY-
dc.contributor.authorQi, Y-
dc.contributor.authorZhang, L-
dc.contributor.authorAssaad, FF-
dc.contributor.authorXu, CK-
dc.contributor.authorMeng, Z-
dc.date.accessioned2019-05-20T05:09:37Z-
dc.date.available2019-05-20T05:09:37Z-
dc.date.issued2019-
dc.identifier.citationPhysical Review X, 2019, v. 9 n. 2, article no. 021022 , p. 1-17-
dc.identifier.issn2160-3308-
dc.identifier.urihttp://hdl.handle.net/10722/270102-
dc.description.abstractThe interplay between lattice gauge theories and fermionic matter accounts for fundamental physical phenomena ranging from the deconfinement of quarks in particle physics to quantum spin liquid with fractionalized anyons and emergent gauge structures in condensedmatter physics. However, except for certain limits (for instance, a large number of flavors of matter fields), analytical methods can provide few concrete results. Here we show that the problem of compact U(1) lattice gauge theory coupled to fermionic matter in (2+1) D is possible to access via sign-problem-free quantum Monte Carlo simulations. One can hence map out the phase diagramas a function of fermion flavors and the strength of gauge fluctuations. By increasing the coupling constant of the gauge field, gauge confinement in the form of various spontaneous-symmetry-breaking phases such as the valence-bond solid (VBS) and Neel antiferromagnet emerge. Deconfined phases with algebraic spin and VBS correlation functions are also observed. Such deconfined phases are incarnations of exotic states of matter, i.e., the algebraic spin liquid, which is generally viewed as the parent state of various quantum phases. The phase transitions between the deconfined and confined phases, as well as that between the different confined phases provide various manifestations of deconfined quantum criticality. In particular, for four flavors N-f = 4, our data suggest a continuous quantum phase transition between the VBS and Neel order. We also provide preliminary theoretical analysis for these quantum phase transitions.-
dc.languageeng-
dc.publisherAmerican Physical Society. The Journal's web site is located at http://journals.aps.org/prx/-
dc.relation.ispartofPhysical Review X-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.titleMonte Carlo Study of Lattice Compact Quantum Electrodynamics with Fermionic Matter: The Parent State of Quantum Phases-
dc.typeArticle-
dc.identifier.emailMeng, Z: zymeng@hku.hk-
dc.identifier.authorityMeng, Z=rp02524-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1103/PhysRevX.9.021022-
dc.identifier.hkuros297815-
dc.identifier.volume9-
dc.identifier.issue2-
dc.identifier.spagearticle no. 021022, p. 1-
dc.identifier.epagearticle no. 021022, p. 17-
dc.identifier.isiWOS:000466614200001-
dc.publisher.placeUnited States-

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