Non-Perturbative Renormalization Group Analysis of the Chiral Critical Behavior in QED | Zendy

Kenichi Aoki | Zendy; K. Morikawa | Zendy; J.-I. Sumi | Zendy; H. Terao | Zendy; M. Tomoyose | Zendy

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Non-Perturbative Renormalization Group Analysis of the Chiral Critical Behavior in QED

Author(s) -

Kenichi Aoki,

K. Morikawa,

J.-I. Sumi,

H. Terao,

M. Tomoyose

Publication year - 1997

Publication title -

progress of theoretical physics

Language(s) - English

Resource type - Journals

eISSN - 1347-4081

pISSN - 0033-068X

DOI - 10.1143/ptp.97.479

Subject(s) - physics , cutoff , renormalization group , critical dimension , mathematical physics , renormalization , functional renormalization group , gauge (firearms) , critical phenomena , quantum electrodynamics , non perturbative , quantum mechanics , phase transition , archaeology , history

We study the chiral critical behaviors of QED by using Non-PerturbativeRenormalization Group (NPRG). Taking account of the non-ladder contributions,our flow equations are free from the gauge parameter ($\alpha$) dependence. Weclarify the chiral phase structure, and calculate the anomalous dimension of$\bar\psi\psi$, which is enhanced compared to the ladder approximation. We findthat the cutoff scheme dependence of the physical results is very small.Comment: 14 pages, latex, 7 figures; misprints correcte

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