{"paper":{"title":"The Stringy Photon Sphere","arxiv_id":"2610.30426","primary_cat":"hep-th","submitted_at":"2026-10-21T20:35:41+00:00","version_compiled":"v1"},"notice":"Every quoted sentence is the authors' text from the arXiv listing abstract. Labels and probabilities are the outputs of classifier-1.13.0 on the question bank abstract-p1-20260923, exactly as returned. 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geodesic.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.95,"main_claim_p":0.11,"quantitative":false,"quantitative_p":0.04,"role_probabilities":{"gap":0.0,"method":0.0,"result":0.81,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.19,"interpretation":0.0}},{"i":2,"p":0.48,"id":"s2","own":true,"role":"result","text":"This includes geodesics orbiting near the photon sphere for a long time, whose kinematics determine the associated lightcone singularities.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.55,"main_claim_p":0.07,"quantitative":false,"quantitative_p":0.04,"role_probabilities":{"gap":0.0,"method":0.02,"result":0.48,"background":0.05,"limitation":0.0,"future_work":0.0,"contribution":0.14,"interpretation":0.31}},{"i":3,"p":0.93,"id":"s3","own":true,"role":"result","text":"By turning on a finite string length $\\ell_s$, worldsheet corrections are shown to shift the lightcone singularities into the complex time plane, resolving the singularities at real times.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.92,"main_claim_p":0.5,"quantitative":false,"quantitative_p":0.11,"role_probabilities":{"gap":0.0,"method":0.01,"result":0.93,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.06,"interpretation":0.0}},{"i":4,"p":0.73,"id":"s4","own":true,"role":"result","text":"In particular, we derive the leading stringy resolution of the photon sphere singularities.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.96,"main_claim_p":0.42,"quantitative":false,"quantitative_p":0.11,"role_probabilities":{"gap":0.0,"method":0.0,"result":0.73,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.27,"interpretation":0.0}},{"i":5,"p":0.54,"id":"s5","own":true,"role":"contribution","text":"We also compute stringy corrections to the eikonal quasinormal mode spectrum of Schwarzschild, and discuss the kinematics of strings orbiting the photon 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