Competing orders and unconventional criticality in the Su-Schrieffer-Heeger model
The phase diagram of the one-dimensional Su-Schrieffer-Heeger model of spinless fermions coupled to quantum phonons is determined by quantum Monte Carlo simulations and differs significantly from previous work. In addition to Luttinger liquid and bond-order-wave (BOW) phases, we find an extended cha...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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American Physical Society
2020-04-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.2.023013 |
| _version_ | 1797211479236149248 |
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| author | Manuel Weber Francesco Parisen Toldin Martin Hohenadler |
| author_facet | Manuel Weber Francesco Parisen Toldin Martin Hohenadler |
| author_sort | Manuel Weber |
| collection | DOAJ |
| description | The phase diagram of the one-dimensional Su-Schrieffer-Heeger model of spinless fermions coupled to quantum phonons is determined by quantum Monte Carlo simulations and differs significantly from previous work. In addition to Luttinger liquid and bond-order-wave (BOW) phases, we find an extended charge-density-wave (CDW) phase. Because of different broken symmetries, BOW and CDW phases are connected by a retardation-driven phase transition. Our results are consistent with the theory of the frustrated XXZ chain, including unconventional power-law exponents at criticality, and with an interpretation in terms of deconfined quantum criticality via proliferation of solitons. |
| first_indexed | 2024-04-24T10:27:08Z |
| format | Article |
| id | doaj.art-83d0fa9503a84bd4a37b3654a4442b50 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:27:08Z |
| publishDate | 2020-04-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-83d0fa9503a84bd4a37b3654a4442b502024-04-12T16:52:23ZengAmerican Physical SocietyPhysical Review Research2643-15642020-04-012202301310.1103/PhysRevResearch.2.023013Competing orders and unconventional criticality in the Su-Schrieffer-Heeger modelManuel WeberFrancesco Parisen ToldinMartin HohenadlerThe phase diagram of the one-dimensional Su-Schrieffer-Heeger model of spinless fermions coupled to quantum phonons is determined by quantum Monte Carlo simulations and differs significantly from previous work. In addition to Luttinger liquid and bond-order-wave (BOW) phases, we find an extended charge-density-wave (CDW) phase. Because of different broken symmetries, BOW and CDW phases are connected by a retardation-driven phase transition. Our results are consistent with the theory of the frustrated XXZ chain, including unconventional power-law exponents at criticality, and with an interpretation in terms of deconfined quantum criticality via proliferation of solitons.http://doi.org/10.1103/PhysRevResearch.2.023013 |
| spellingShingle | Manuel Weber Francesco Parisen Toldin Martin Hohenadler Competing orders and unconventional criticality in the Su-Schrieffer-Heeger model Physical Review Research |
| title | Competing orders and unconventional criticality in the Su-Schrieffer-Heeger model |
| title_full | Competing orders and unconventional criticality in the Su-Schrieffer-Heeger model |
| title_fullStr | Competing orders and unconventional criticality in the Su-Schrieffer-Heeger model |
| title_full_unstemmed | Competing orders and unconventional criticality in the Su-Schrieffer-Heeger model |
| title_short | Competing orders and unconventional criticality in the Su-Schrieffer-Heeger model |
| title_sort | competing orders and unconventional criticality in the su schrieffer heeger model |
| url | http://doi.org/10.1103/PhysRevResearch.2.023013 |
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