Continuum strong-coupling expansion of Yang-Mills theory: quark confinement and infra-red slavery (1994)
Journal Article
Mansfield, P. (1994). Continuum strong-coupling expansion of Yang-Mills theory: quark confinement and infra-red slavery. Nuclear Physics B, 418(1-2), 113-130. https://doi.org/10.1016/0550-3213%2894%2990240-2

We solve Schrödinger's equation for the ground-state of four-dimensional Yang-Mills theory as an expansion in inverse powers of the coupling. Expectation values computed with the leading-order approximation are reduced to a calculation in two-dimensi... Read More about Continuum strong-coupling expansion of Yang-Mills theory: quark confinement and infra-red slavery.

The consistency of topological expansions in field theory: “BRST anomalies” in strings and Yang-Mills (1994)
Journal Article
Mansfield, P. (1994). The consistency of topological expansions in field theory: “BRST anomalies” in strings and Yang-Mills. Nuclear Physics B, 416(1), 205-226. https://doi.org/10.1016/0550-3213%2894%2990583-5

Many field theories of physical interest have configuration spaces consisting of disconnected components. Quantum mechanical amplitudes are then expressed as sums over these components. We use the Faddeev-Popov approach to write the terms in this top... Read More about The consistency of topological expansions in field theory: “BRST anomalies” in strings and Yang-Mills.