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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/8175
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dc.contributor.authorBag, Rupak-
dc.contributor.authorRoy, Dibyendu-
dc.date.accessioned2023-11-23T10:59:04Z-
dc.date.available2023-11-23T10:59:04Z-
dc.date.issued2023-11-21-
dc.identifier.citationPhysical Review A, 2023, Vol.108, p053717en_US
dc.identifier.urihttp://hdl.handle.net/2289/8175-
dc.descriptionRestricted Access. An open-access version is available at arXiv.org (one of the alternative locations)en_US
dc.description.abstractWe explore special features of quantum light-matter interactions inside structured waveguides due to their finite bandwidth, band edges, and nontrivial topological properties. We model the waveguides as either a tight-binding (TB) chain or a Su-Schrieffer-Heeger (SSH) chain. For unstructured waveguides with infinite bandwidth, the transmission and reflection coefficients of a side-coupled two-level emitter (2LE) are the same as the reflection and transmission coefficients of a direct-coupled 2LE. We show that this analogy breaks down for structured waveguides with finite bandwidth due to the appearance of Lamb shift only for the direct-coupled 2LE. We further predict a robust light-emitter coupling at zero collective decay width of a single giant 2LE (with two couplings at different points) near the band edges of the structured waveguides where topological features can be beneficial. Finally, we study single-photon dynamics in a heterojunction of a long TB and short SSH waveguide connected to a 2LE at the SSH end. We show the propagation of a photon from the excited emitter to the TB waveguide only when the SSH waveguide is in the topological phase. Thus, the heterojunction acts as a conditional propagation channel.en_US
dc.language.isoenen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.urihttps://arxiv.org/abs/2304.13306en_US
dc.relation.urihttps://doi.org/10.1103/PhysRevA.108.053717en_US
dc.relation.urihttps://ui.adsabs.harvard.edu/abs/2023arXiv230413306B/abstracten_US
dc.relation.urihttps://inspirehep.net/literature/2654527en_US
dc.rights2023 American Physical Societyen_US
dc.titleQuantum light-matter interactions in structured waveguidesen_US
dc.typeArticleen_US
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