{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["11(14)"],"submitter":["Lu YW"],"pubmed_abstract":["Dissipation, often associated with plasmons, leads to decoherence and is generally considered fatal for quantum nonlinearities and entanglement. Counterintuitively, by introducing a dissipative plasmonic nanoantenna into a typical cavity quantum electrodynamics (QED) system, we unveil the wide existence of the atom-photon quasi-bound state (qBS), a kind of exotic eigenstate with anomalously small decay, in the hybrid plasmonic-photonic cavity. To derive the analytical condition of atom-photon qBS, we formulate a quantized two-mode model of the local density of states by connecting the interacting uncoupled cavity modes to the macroscopic QED. With resonant plasmon-photon coupling, we showcase the single-atom qBS that improves the efficiency of single-photon generation over one order of magnitude; and the two-atom qBS that significantly enhances spontaneous entanglement generation compared with a bare photonic cavity. Notably, such single-atom and multi-atom qBS can be simultaneously accessed in realistic plasmonic-photonic cavities, providing a versatile platform for advanced quantum technologies, such as quantum light sources, quantum computation, and quantum information."],"journal":["Nanophotonics (Berlin, Germany)"],"pagination":["3307-3317"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC11502002"],"repository":["biostudies-literature"],"pubmed_title":["Unveiling atom-photon quasi-bound states in hybrid plasmonic-photonic cavity."],"pmcid":["PMC11502002"],"pubmed_authors":["Lu YW","Li Y","Wu L","Tan H","Zhou WJ","Liu JF","Li R"],"additional_accession":[]},"is_claimable":false,"name":"Unveiling atom-photon quasi-bound states in hybrid plasmonic-photonic cavity.","description":"Dissipation, often associated with plasmons, leads to decoherence and is generally considered fatal for quantum nonlinearities and entanglement. Counterintuitively, by introducing a dissipative plasmonic nanoantenna into a typical cavity quantum electrodynamics (QED) system, we unveil the wide existence of the atom-photon quasi-bound state (qBS), a kind of exotic eigenstate with anomalously small decay, in the hybrid plasmonic-photonic cavity. To derive the analytical condition of atom-photon qBS, we formulate a quantized two-mode model of the local density of states by connecting the interacting uncoupled cavity modes to the macroscopic QED. With resonant plasmon-photon coupling, we showcase the single-atom qBS that improves the efficiency of single-photon generation over one order of magnitude; and the two-atom qBS that significantly enhances spontaneous entanglement generation compared with a bare photonic cavity. Notably, such single-atom and multi-atom qBS can be simultaneously accessed in realistic plasmonic-photonic cavities, providing a versatile platform for advanced quantum technologies, such as quantum light sources, quantum computation, and quantum information.","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Jul","modification":"2025-04-04T01:15:29.302Z","creation":"2025-04-04T01:15:29.302Z"},"accession":"S-EPMC11502002","cross_references":{"pubmed":["39635545"],"doi":["10.1515/nanoph-2022-0162"]}}