3 papers
hep-th2026
Explicit construction of the energy-momentum tensor in the large N limit
Carlo Pagani, Hidenori Sonoda
We construct the energy-momentum tensor of the O(N) linear sigma model explicitly in the large N limit using the exact renormalization group (ERG) formalism. The energy-momentum te…
hep-th2024
Background dependent cutoff for Wilson actions
Carlo Pagani, Hidenori Sonoda
We study the application of the background field method in the framework of the exact renormalization group (ERG). By considering the case of a scalar field theory, we provide a de…
hep-th2024
On the field independent additive constant in Wilson actions
Carlo Pagani, Hidenori Sonoda
We discuss the field independent additive constant in Wilson actions carefully within the exact renormalization group formalism. The additive constant does not affect the correlati…