2008/03/31 by L. F. Palhares, Letícia F. Palhares, Eduardo S. Fraga · 19 citations
Mathematics · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Fermion #Flow (mathematics) #Functional renormalization group #Mathematical physics #Mathematics #Physics #Physics of Superconductivity and Magnetism #Quantum Chromodynamics and Particle Interactions #Quantum electrodynamics #Quantum mechanics #Renormalization #Renormalization group #Scalar (mathematics) #Yukawa potential #cond-mat.str-el #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevd.78.025013
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 78(2) (American Physical Society) · 17 pages, 11 figures, uses package feynmp; v2: minor modifications, 1 reference added; matches published version
openalex publication_date 2008/07/10 · arxiv created 2008/09/09 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Yukawa theory at vanishing temperature provides (one of the ingredients for) an effective description of the thermodynamics of a variety of cold and dense fermionic systems. We study the role of masses and the renormalization group flow in the calculation of the equation of state up to two loops within the MS scheme. Two-loop integrals are computed analytically for arbitrary fermion and scalar masses, and expressed in terms of well-known special functions. The dependence of the renormalization group flow on the number of fermion flavors is also discussed.