S-knot explained

In loop quantum gravity, an s-knot is an equivalence class of spin networks under diffeomorphisms. In this formalism, s-knots represent the quantum states of the gravitational field.

External links

• Living Reviews in Relativity: Loop Quantum Gravity: Diffeomorphism invariance
• Rovelli . Carlo . Black Hole Entropy from Loop Quantum Gravity . Physical Review Letters . 77 . 16 . 1996-10-14 . 0031-9007 . 10.1103/physrevlett.77.3288 . 3288–3291. 10062183 . gr-qc/9603063v1. 43493308 .