dc.contributor.author | Vogl, Michael | |
dc.contributor.author | Rodriguez-Vega, Martin | |
dc.contributor.author | Fiete, Gregory | |
dc.date.accessioned | 2020-05-27T21:00:16Z | |
dc.date.available | 2020-05-27T21:00:16Z | |
dc.date.issued | 2020-01 | |
dc.date.submitted | 2019-10 | |
dc.identifier.issn | 2469-9950 | |
dc.identifier.issn | 2469-9969 | |
dc.identifier.uri | https://hdl.handle.net/1721.1/125530 | |
dc.description.abstract | We develop a theory to derive effective Floquet Hamiltonians in the weak-drive and low-frequency regime. We construct the theory in analogy with band theory for electrons in a spatially periodic and weak potential, such as occurs in some crystalline materials. As a prototypical example, we apply this theory to graphene driven by circularly polarized light of low intensity. We find an analytic expression for the effective Floquet Hamiltonian in the low-frequency regime which accurately predicts the quasienergy spectrum and the Floquet states. Furthermore, we identify self-consistency as the crucial feature effective Hamiltonians in this regime need to satisfy to achieve high accuracy. The method is useful in providing a realistic description of off-resonant drives for multiband solid-state systems where light-induced topological band structure changes are sought. | en_US |
dc.description.sponsorship | NSF Materials Research Science and Engineering Center Grant No. DMR-1720595 | en_US |
dc.publisher | American Physical Society (APS) | en_US |
dc.relation.isversionof | http://dx.doi.org/10.1103/PhysRevB.101.024303 | en_US |
dc.rights | Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. | en_US |
dc.source | American Physical Society | en_US |
dc.title | Effective Floquet Hamiltonian in the low-frequency regime | en_US |
dc.type | Article | en_US |
dc.identifier.citation | Vogl, Michael, Martin Rodriguez-Vega, and Gregory A. Flete. "Effective Floquet Hamiltonian in the low-frequency regime." Physical Review B, 101, 2 (January 2020): 024303. © 2020 American Physical Society | en_US |
dc.contributor.department | Massachusetts Institute of Technology. Department of Physics | en_US |
dc.relation.journal | Physical Review B | en_US |
dc.eprint.version | Final published version | en_US |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
dc.date.updated | 2020-01-14T20:44:21Z | |
dc.language.rfc3066 | en | |
dc.rights.holder | American Physical Society | |
dspace.date.submission | 2020-01-14T20:44:20Z | |
mit.journal.volume | 101 | en_US |
mit.journal.issue | 2 | en_US |
mit.metadata.status | Complete | |