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- Publisher Website: 10.1103/PhysRevB.95.085110
- Scopus: eid_2-s2.0-85013124604
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Article: Topological phase transitions with SO(4) symmetry in (2+1)D interacting Dirac fermions
Title | Topological phase transitions with SO(4) symmetry in (2+1)D interacting Dirac fermions |
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Authors | |
Issue Date | 2017 |
Publisher | American Physical Society. The Journal's web site is located at http://journals.aps.org/prb/ |
Citation | Physical Review B: covering condensed matter and materials physics, 2017, v. 95 n. 8, article no. 085110 How to Cite? |
Abstract | © 2017 American Physical Society. Interaction-driven topological phase transitions in Dirac semimetals are investigated by means of large-scale quantum Monte Carlo simulations. The interaction among Dirac fermions is introduced by coupling them to Ising spins that realize the quantum dynamics of the two-dimensional transverse field Ising model. The ground-state phase diagram, in which the tuning parameters are the transverse field and the coupling between fermion and Ising spins, is determined. At weak and intermediate coupling, a second-order Ising quantum phase transition and a first-order topological phase transition between two topologically distinct Dirac semimetals are observed. Interestingly, at the latter, the Dirac points smear out to form nodal lines in the Brillouin zone, and collective bosonic fluctuations with SO(4) symmetry are strongly enhanced. At strong coupling, these two phase boundaries merge into a first-order transition. |
Persistent Identifier | http://hdl.handle.net/10722/268587 |
ISSN | 2023 Impact Factor: 3.2 2023 SCImago Journal Rankings: 1.345 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Xu, Xiao Yan | - |
dc.contributor.author | Beach, K. S.D. | - |
dc.contributor.author | Sun, Kai | - |
dc.contributor.author | Assaad, F. F. | - |
dc.contributor.author | Meng, Zi Yang | - |
dc.date.accessioned | 2019-03-25T08:00:08Z | - |
dc.date.available | 2019-03-25T08:00:08Z | - |
dc.date.issued | 2017 | - |
dc.identifier.citation | Physical Review B: covering condensed matter and materials physics, 2017, v. 95 n. 8, article no. 085110 | - |
dc.identifier.issn | 2469-9950 | - |
dc.identifier.uri | http://hdl.handle.net/10722/268587 | - |
dc.description.abstract | © 2017 American Physical Society. Interaction-driven topological phase transitions in Dirac semimetals are investigated by means of large-scale quantum Monte Carlo simulations. The interaction among Dirac fermions is introduced by coupling them to Ising spins that realize the quantum dynamics of the two-dimensional transverse field Ising model. The ground-state phase diagram, in which the tuning parameters are the transverse field and the coupling between fermion and Ising spins, is determined. At weak and intermediate coupling, a second-order Ising quantum phase transition and a first-order topological phase transition between two topologically distinct Dirac semimetals are observed. Interestingly, at the latter, the Dirac points smear out to form nodal lines in the Brillouin zone, and collective bosonic fluctuations with SO(4) symmetry are strongly enhanced. At strong coupling, these two phase boundaries merge into a first-order transition. | - |
dc.language | eng | - |
dc.publisher | American Physical Society. The Journal's web site is located at http://journals.aps.org/prb/ | - |
dc.relation.ispartof | Physical Review B: covering condensed matter and materials physics | - |
dc.title | Topological phase transitions with SO(4) symmetry in (2+1)D interacting Dirac fermions | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1103/PhysRevB.95.085110 | - |
dc.identifier.scopus | eid_2-s2.0-85013124604 | - |
dc.identifier.volume | 95 | - |
dc.identifier.issue | 8 | - |
dc.identifier.spage | article no. 085110 | - |
dc.identifier.epage | article no. 085110 | - |
dc.identifier.eissn | 2469-9969 | - |
dc.identifier.isi | WOS:000393501200004 | - |
dc.identifier.issnl | 2469-9950 | - |