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19942025
most citedScreened Perturbation Theory

233 citations · 581 across the 42 of their papers we have counts for

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6 papers · 1 filter

hep-th2019★ 2 cited

Interacting two-particle states in the symmetric phase of the chiral Nambu--Jona-Lasinio model

A. Jakovac, A. Patkos

The renormalisation group flow of the chiral Nambu--Jona-Lasinio (NJL) model with one fermion flavor is mapped out in the symmetric phase with the help of the Functional Renormalis…

hep-th2018★ 11 cited

Bound states in Functional Renormalization Group

A. Jakovac, A. Patkos

Equivalence criteria are established for an effective Yukawa-type theory of composite fields representing two-particle fermion bound states with the original "microscopic" theory o…

hep-th2015★ 5 cited

Renormalisation Group determination of scalar mass bounds in a simple Yukawa-model

A. Jakovac, I. Kaposvari, A. Patkos

The scalar mass is determined in the simplest scalar-fermion Yukawa-model in the whole range of stability of the scalar potential. Two versions of the Functional Renormalisation Gr…

hep-th2015★ 13 cited

Scalar mass stability bound in a simple Yukawa-theory from renormalisation group equations

A. Jakovac, I. Kaposvari, A. Patkos

Functional Renormalisation Group (FRG) equations are constructed for a simple Yukawa-model with discrete chiral symmetry, including also the effect of a nonzero composite fermion b…

hep-th2006★ 7 cited

Phantom field fluctuation induced Higgs effect

A. Patkos, Zs. Szep

Symmetry breaking solutions are investigated in the limit for the ground state of a system consisting of a Lorentz-scalar, N component ``phantom'' field and an O(N) s…

hep-th2000★ 24 cited

Fate of the classical false vacuum

Sz. Borsanyi, A. Patkos, J. Polonyi +1

Thermalisation of configurations with initial white noise power spectrum is studied in numerical simulations of a classical one-component theory in 2+1 dimensions, coupled to…