<?xml version="1.0" encoding="UTF-8"?><urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:news="http://www.google.com/schemas/sitemap-news/0.9"><url><loc>https://thequantuminformation.com/p/a-concrete-counterexample-to-tsirelsons</loc><news:news><news:publication><news:name>The Quantum Information</news:name><news:language>en</news:language></news:publication><news:publication_date>2026-10-08T14:17:06+00:00</news:publication_date><news:title>A Concrete Counterexample to Tsirelson’s Problem, Checked in Lean</news:title></news:news></url><url><loc>https://thequantuminformation.com/p/black-hole-radiation-decoding-is</loc><news:news><news:publication><news:name>The Quantum Information</news:name><news:language>en</news:language></news:publication><news:publication_date>2026-10-07T14:00:12+00:00</news:publication_date><news:title>Black-hole radiation decoding is exponentially hard in the Haar random oracle model</news:title></news:news></url></urlset>