# Wilson spool
The Wilson spool is a proposal to incorporate matter into the gravitational path integral in AdS3 or dS3. At the $G_N\to0$ limit, it reproduces the one-loop exact scalar field partition function on fixed backgrounds.
## Refs
- original
- [[2023#Castro, Coman, Fliss, Zukowski (Mar)]] (dS)
- [[2023#Castro, Coman, Fliss, Zukowski (Apr, Letter)]] (dS and AdS)
- extensions
- [[2024#Bourne, Castro, Fliss]]: with spins, robust derivation, relation to QNM
- [[2025#Fliss]]: JT with matter, dimensional reduction from 3D
- [[2024#He]]: [[0170 TTbar|TTbar]] deformation in AdS3
- [[2025#Haupfear, Martin, Svesko, Zukowski]]: relation to Selberg zeta function
- [[2025#Bourne, Fliss, Knighton]]: any hyperbolic 3d manifold