Topological Quantum Field Theory via Chren-Simons Theory, part 1
Yifan Zhang, Ke Wu

TL;DR
This paper constructs a Topological Quantum Field Theory (TQFT) using Chern-Simons theory with compact Lie groups, interpreting cobordisms and spacetime fields through categorical frameworks.
Contribution
It provides a categorical construction of TQFT via Chern-Simons theory, clarifying the attachment to a point and the role of cobordisms and spacetime fields.
Findings
Categorical interpretation of TQFT and Chern-Simons theory
Construction of TQFT via cobordisms as cospans
Field of spacetime as spans
Abstract
To understand what does Chern-Simons with compact Lie group(does not like Dijkgraaf-Witten model with finite group in 3d) attach to a point, we first give a construction of Topological Quantum Field Theory(TQFT) via Chern-Simons theory in this paper. We discuss the Topological Quantum Field Theory and Chern-Simons theory via Category, then interpret the cobordism as cospan and field of space-time as span, which ultimately deduce the construction of TQFT.
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Taxonomy
TopicsHomotopy and Cohomology in Algebraic Topology · Black Holes and Theoretical Physics · Algebraic structures and combinatorial models
