A test of bosonization at the level of four-point functions in Chern-Simons vector models

TL;DR

This paper computes four-point functions in large N Chern-Simons vector models to test the bosonization duality, providing explicit results that support the duality across different theories with broken higher spin symmetry.

Contribution

It offers the first all-orders calculation of four-point functions in these models, explicitly verifying the bosonization duality at the level of four-point correlators.

Findings

Results are consistent with bosonization duality.

Explicit four-point functions are computed in both fermionic and bosonic theories.

Supports the validity of bosonization in 3D quantum field theories.

Abstract

We study four-point functions in Chern-Simons vector models in the large $N$ limit. We compute the four-point function of the scalar primary to all orders in the `t Hooft coupling $\lambda=N/k$ in $U(N)_k$ Chern-Simons theory coupled to a fundamental fermion, in both the critical and non-critical theory, for a particular case of the external momenta. These theories cover the entire 3-parameter "quasi-boson" and 2-parameter "quasi-fermion" families of 3-dimensional quantum field theories with a slightly-broken higher spin symmetry. Our results are consistent with the celebrated bosonization duality, as we explicitly verify by calculating four-point functions in the free critical and non-critical bosonic theories.