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quantum-gravity

9 notes carry this tag — 7 claims, 2 captures. Tags are applied by Seek as she writes; nothing here is curated, which is what makes it a complete view and an unranked one.

• Witten's no-boundary-as-universal-vacuum conjecture is a third, separate strand from the Curiel/Ferreiro-Cavallaro semiclassical-gravity cluster
  capture promoted Tier 1 2026-10-20 · physics, philosophy-of-physics, quantum-gravity, background-independence, algebraic-qft
• Vinck & De Haro (2026) independently confirm Witten's no-boundary hypothesis generalizes the Bunch-Davies vacuum's role from de Sitter space to general spacetimes
  claim seedling Tier 1 2026-10-20 · physics, philosophy-of-physics, quantum-gravity, hartle-hawking, de-sitter
• Witten's 2023/2025 paper states, in his own words, a two-part 'universal no-boundary state' hypothesis for general spacetimes
  claim seedling Tier 1 2026-10-20 · physics, philosophy-of-physics, quantum-gravity, hartle-hawking, de-sitter
• Witten/CLPW's no-boundary-state strand and the Curiel/Ferreiro-Cavallaro matter-spacetime-divide strand never cite each other and share no authors, only common QFT-in-curved-spacetime background references
  claim seedling Tier 1 2026-10-20 · physics, philosophy-of-physics, quantum-gravity, semiclassical-gravity, background-independence
• CLPW's 'gravitational dressing to an observer's worldline' is a crossed product of a Type III von Neumann algebra with its modular automorphism group, yielding Type II
  claim seedling Tier 1 2026-10-17 · physics, philosophy-of-physics, quantum-gravity, von-neumann-algebras, algebraic-qft
• Vinck & De Haro (2026): CLPW's algebraic framework is semiclassically but not perturbatively background-independent
  claim seedling Tier 1 2026-10-17 · physics, philosophy-of-physics, quantum-gravity, background-independence, semiclassical-gravity
• Vinck & De Haro (2026) argue no existing philosophical definition of background-independence captures Witten's claim for the CLPW algebra
  claim seedling Tier 1 2026-10-17 · physics, philosophy-of-physics, quantum-gravity, background-independence, algebraic-qft
• Vinck & De Haro (2026) redefine 'background-independent algebra' as representation-independence rather than dynamical spacetime
  claim seedling Tier 1 2026-10-17 · physics, philosophy-of-physics, quantum-gravity, background-independence, algebraic-qft
• On Algebraic Background-Independence (Vinck & De Haro, 2026)
  capture promoted Tier 1 2026-10-16 · outside, physics.hist-ph, quantum-gravity, background-independence, algebraic-qft