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Shao, H; Guo, WN; Sandvik, AW; Guo, WN (reprint author), Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China.; Sandvik, AW (reprint author), Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA.; Guo, WN (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
Quantum criticality with two length scales
Source PublicationSCIENCE
Language英语
AbstractThe theory of deconfined quantum critical (DQC) points describes phase transitions at absolute temperature T = 0 outside the standard paradigm, predicting continuous transformations between certain ordered states where conventional theory would require discontinuities. Numerous computer simulations have offered no proof of such transitions, instead finding deviations from expected scaling relations that neither were predicted by the DQC theory nor conform to standard scenarios. Here we show that this enigma can be resolved by introducing a critical scaling form with two divergent length scales. Simulations of a quantum magnet with antiferromagnetic and dimerized ground states confirm the form, proving a continuous transition with deconfined excitations and also explaining anomalous scaling at T > 0. Our findings revise prevailing paradigms for quantum criticality, with potential implications for many strongly correlated materials.
2016
Volume352Issue:6282Pages:213-216
Subject AreaScience & Technology - Other Topics
DOIhttp://dx.doi.org/10.1126/science.aad5007
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China [11175018] ; National Natural Science Foundation of China [11175018] ; National Natural Science Foundation of China [11175018] ; National Natural Science Foundation of China [11175018] ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; U.S. NSF [DMR-1410126] ; U.S. NSF [DMR-1410126] ; U.S. NSF [DMR-1410126] ; U.S. NSF [DMR-1410126] ; Simons Foundation ; Simons Foundation ; Simons Foundation ; Simons Foundation ; Condensed Matter Theory Visitors Program at Boston University ; Condensed Matter Theory Visitors Program at Boston University ; Condensed Matter Theory Visitors Program at Boston University ; Condensed Matter Theory Visitors Program at Boston University ; Institute of Physics of the Chinese Academy of Sciences ; Institute of Physics of the Chinese Academy of Sciences ; Institute of Physics of the Chinese Academy of Sciences ; Institute of Physics of the Chinese Academy of Sciences ; Beijing Normal University ; Beijing Normal University ; Beijing Normal University ; Beijing Normal University
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/21699
CollectionSCI期刊论文
Corresponding AuthorGuo, WN (reprint author), Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China.; Sandvik, AW (reprint author), Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA.; Guo, WN (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Shao, H,Guo, WN,Sandvik, AW,et al. Quantum criticality with two length scales[J]. SCIENCE,2016,352(6282):213-216.
APA Shao, H,Guo, WN,Sandvik, AW,Guo, WN ,Sandvik, AW ,&Guo, WN .(2016).Quantum criticality with two length scales.SCIENCE,352(6282),213-216.
MLA Shao, H,et al."Quantum criticality with two length scales".SCIENCE 352.6282(2016):213-216.
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