Renormalization group and superconductivity, and neutrino-type solutions in field theory

Autor:	V.P. Gusynin, Yu. A. Sitenko, P.I. Fomin, V.A. Miransky
Rok vydání:	1976
Předmět:	Condensed Matter::Quantum Gases Coupling constant Physics Nuclear and High Energy Physics Fermion doubling Helical Dirac fermion High Energy Physics::Lattice Fermion Renormalization group Massless particle symbols.namesake Dirac fermion Quantum electrodynamics symbols Vacuum polarization
Zdroj:	Nuclear Physics B. 110:445-460
ISSN:	0550-3213
DOI:	10.1016/0550-3213(76)90233-9
Popis:	The Bogoliubov-Shirkov differential equations for the renormalization group are modified to investigate the dynamical mechanism of mass generation in field theory. It is shown that in quantum electrodynamics with cut-off, a fermion may acquire a superconductivity-type mass only if the bare coupling constant α Λ exceeds some critical value α C . When α Λ α C , the fermion remains massless. The vacuum polarization of massless fermions leads to a complete shielding of the bare charge (neutrino-type solution). As a result, it is concluded that charged massless fermions cannot exist.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::305861c50109a08b47d7d672486c04a0 https://doi.org/10.1016/0550-3213(76)90233-9 Zobrazit plný text záznamu