{"paper":{"title":"Emergent $\\PT$ Symmetry and Exceptional Points in a Driven Dirac Impurity","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Vinayak M. Kulkarni","submitted_at":"2025-05-23T12:28:41Z","abstract_excerpt":"Periodic driving of correlated impurities can generate nonequilibrium steady states in which balanced gain-loss structures and exceptional points emerge without inserting non-Hermitian terms by hand. We show that coarse graining a driven, inversion-asymmetric Dirac impurity produces a PT-symmetric frozen steady-state kernel with spin-selective gain and loss. The correlated impurity is treated within slave-boson mean-field theory, where the gauge-invariant condensate amplitude r=|b_c| sets the channel-projected control scale. Within this approximation, finite-drive impurity-sector exceptional p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.17811","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2505.17811/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}