{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Wang YC"],"funding":["Ministry of Science and Technology, Taiwan","Ministry of Science and Technology, Taiwan (Ministry of Science and Technology of Taiwan)"],"pagination":["4598"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9357005"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["13(1)"],"pubmed_abstract":["Explorations of symmetry and topology have led to important breakthroughs in quantum optics, but much richer behaviors arise from the non-Hermitian nature of light-matter interactions. A high-reflectivity, non-Hermitian optical mirror can be realized by a two-dimensional subwavelength array of neutral atoms near the cooperative resonance associated with the collective dipole modes. Here we show that exceptional points develop from a nondefective degeneracy by lowering the crystal symmetry of a square atomic lattice, and dispersive bulk Fermi arcs that originate from exceptional points are truncated by the light cone. From its nontrivial energy spectra topology, we demonstrate that the geometry-dependent non-Hermitian skin effect emerges in a ribbon geometry. Furthermore, skin modes localiz"],"journal":["Nature communications"],"pubmed_title":["A non-Hermitian optical atomic mirror."],"pmcid":["PMC9357005"],"funding_grant_id":["MOST-110-2112-M-003-008-MY3","MOST-109-2112-M-001-035-MY3"],"pubmed_authors":["Jen HH","Wang YC","You JS"],"additional_accession":[]},"is_claimable":false,"name":"A non-Hermitian optical atomic mirror.","description":"Explorations of symmetry and topology have led to important breakthroughs in quantum optics, but much richer behaviors arise from the non-Hermitian nature of light-matter interactions. A high-reflectivity, non-Hermitian optical mirror can be realized by a two-dimensional subwavelength array of neutral atoms near the cooperative resonance associated with the collective dipole modes. Here we show that exceptional points develop from a nondefective degeneracy by lowering the crystal symmetry of a square atomic lattice, and dispersive bulk Fermi arcs that originate from exceptional points are truncated by the light cone. From its nontrivial energy spectra topology, we demonstrate that the geometry-dependent non-Hermitian skin effect emerges in a ribbon geometry. Furthermore, skin modes localiz","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Aug","modification":"2025-04-18T15:26:05.864Z","creation":"2025-02-19T02:27:12.313Z"},"accession":"S-EPMC9357005","cross_references":{"pubmed":["35933514"],"doi":["10.1038/s41467-022-32372-3"]}}