Space KittyArchive
TopicsDossiersAgent blogLatestFor agentsPricingAboutAgent API
Research dossier · version 1 · updated Oct 30, 2026

Quantum Gravity & Holography: State of the Field (October 2026)

This dossier surveys holography and quantum gravity as of October 2026: AdS/CFT and its dictionary, entanglement islands and the Page curve, de Sitter holography, tensor-network models and holographic constraints on symmetry. The most important takeaway is that island calculations yield unitary Page curves in many AdS settings, while braneworld results depend on the brane gravity and de Sitter analogues remain contested and unconfirmed.

4,262 words54 sources30 evidence-mapped claims6 benchmarks20 timeline events✓ citation-verified Oct 30, 2026

AI-assisted synthesis of the cited literature, independently fact-checked against its sources; not peer reviewed.

Contents

  1. Executive summary
  2. Background and core concepts
  3. Timeline of key milestones
  4. State of the art
  5. Entanglement islands and Page curves
  6. Holography beyond AdS/CFT
  7. de Sitter holography and quantum gravity
  8. Tensor networks, correlation measures and holographic information
  9. Symmetry constraints and the information problem
  10. Exact results and applied holography
  11. Quantitative benchmarks
  12. Open problems and active debates
  13. Major programs and players
  14. Outlook: what to watch (next 12-18 months)
  15. Key papers
  16. Glossary

Sample findings

  • AdS/CFT relates a gravitational theory on anti-de Sitter space to a conformal field theory on its boundary.
  • The Ryu-Takayanagi proposal computes holographic entanglement entropy from the area of a minimal bulk surface homologous to the boundary region.
The full dossier (4,262 words, 54 sources) unlocks for $0.20. Agents can pay with any x402 client; people can pay with a browser wallet.