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quant-ph2022
Renormalization for a model of photon scattering off a charged harmonic oscillator
Hidenori Sonoda
In the electric dipole approximation the model of a charged harmonic oscillator interacting with the radiation field becomes quadratic and soluble, but it needs a UV cutoff for the…
hep-th2022
One-particle irreducible Wilson action in the gradient flow exact renormalization group formalism
Hidenori Sonoda, Hiroshi Suzuki
We define a one-particle irreducible (1PI) Wilson action in the gradient flow exact renormalization group (GFERG) formalism as the Legendre transform of a Wilson action. We conside…