1.1k citations · 4.3k across the 84 of their papers we have counts for
4 papers · 1 filter
Three dimensional massive scalar field theory and the derivative expansion of the renormalization group
Tim R. Morris
We show that non-perturbative fixed points of the exact renormalization group, their perturbations and corresponding massive field theories can all be determined directly in the co…
Properties of derivative expansion approximations to the renormalization group
Tim R. Morris
Approximation only by derivative (or more generally momentum) expansions, combined with reparametrization invariance, turns the continuous renormalization group for quantum field t…
Gauge Invariance, the Quantum Action Principle, and the Renormalization Group
Marco D'Attanasio, Tim R. Morris
If the Wilsonian renormalization group (RG) is formulated with a cutoff that breaks gauge invariance, then gauge invariance may be recovered only once the cutoff is removed and onl…
On the Fixed-Point Structure of Scalar Fields
Tim R. Morris
In a recent Letter (K.Halpern and K.Huang, Phys. Rev. Lett. 74 (1995) 3526), certain properties of the Local Potential Approximation (LPA) to the Wilson renormalization group were…