AbstractIn this talk we will review Witten’s work on understanding knot invariants based on Chern-Simons theory. We will first introduce the physics observables in Chern-Simons theory which correspond to knot invariants and talk about why they are topological invariants. After a short introduction about the quantization of Chern-Simons theory, we will review how to understand skein relations a...
摘要Entanglement is a feature of quantum mechanics, which remains mysterious for quantum field theories. However, a physical toy model called topological field theory does not fall far away from quantum mechanics. In this talk, elementary concept of above is introduced, and slightly entangled