{"title":"MoTe$_2$/WSe$_2$ 异质层中的拓扑激元","authors":"Paul Froese, Titus Neupert, Glenn Wagner","doi":"arxiv-2409.04371","DOIUrl":null,"url":null,"abstract":"Due to the presence of flat Chern bands, moir\\'e transition metal\ndichalcogenide (TMD) bilayers are a platform to realize strongly correlated\ntopological phases of fermions such as fractional Chern insulators. TMDs are\nalso known to host long-lived excitons, which inherit the topology of the\nunderlying Chern bands. For the particular example of MoTe$_2$/WSe$_2$\nheterobilayers we perform a time-dependent Hartree-Fock calculation to identify\na regime in the phase diagram where the excitons themselves form a topological\nflat band. This paves a way towards realizing strongly correlated states of\nbosons in moir\\'e TMDs.","PeriodicalId":501171,"journal":{"name":"arXiv - PHYS - Strongly Correlated Electrons","volume":"21 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Topological excitons in moiré MoTe$_2$/WSe$_2$ heterobilayers\",\"authors\":\"Paul Froese, Titus Neupert, Glenn Wagner\",\"doi\":\"arxiv-2409.04371\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Due to the presence of flat Chern bands, moir\\\\'e transition metal\\ndichalcogenide (TMD) bilayers are a platform to realize strongly correlated\\ntopological phases of fermions such as fractional Chern insulators. TMDs are\\nalso known to host long-lived excitons, which inherit the topology of the\\nunderlying Chern bands. For the particular example of MoTe$_2$/WSe$_2$\\nheterobilayers we perform a time-dependent Hartree-Fock calculation to identify\\na regime in the phase diagram where the excitons themselves form a topological\\nflat band. This paves a way towards realizing strongly correlated states of\\nbosons in moir\\\\'e TMDs.\",\"PeriodicalId\":501171,\"journal\":{\"name\":\"arXiv - PHYS - Strongly Correlated Electrons\",\"volume\":\"21 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-09-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - PHYS - Strongly Correlated Electrons\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2409.04371\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Strongly Correlated Electrons","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.04371","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Topological excitons in moiré MoTe$_2$/WSe$_2$ heterobilayers
Due to the presence of flat Chern bands, moir\'e transition metal
dichalcogenide (TMD) bilayers are a platform to realize strongly correlated
topological phases of fermions such as fractional Chern insulators. TMDs are
also known to host long-lived excitons, which inherit the topology of the
underlying Chern bands. For the particular example of MoTe$_2$/WSe$_2$
heterobilayers we perform a time-dependent Hartree-Fock calculation to identify
a regime in the phase diagram where the excitons themselves form a topological
flat band. This paves a way towards realizing strongly correlated states of
bosons in moir\'e TMDs.
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