Ward identity and electrical conductivity in hot QED | Zendy

Gert Aarts | Zendy; Jose M. Martínez Resco | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Ward identity and electrical conductivity in hot QED

Author(s) -

Gert Aarts,

Jose M. Martínez Resco

Publication year - 2002

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2002/11/022

Subject(s) - logarithm , vertex (graph theory) , identity (music) , diagram , electrical resistivity and conductivity , conductivity , physics , electron , order (exchange) , condensed matter physics , mathematics , mathematical analysis , quantum mechanics , combinatorics , statistics , finance , acoustics , economics , graph

We study the Ward identity for the effective photon-electron vertex summingthe ladder diagrams contributing to the electrical conductivity in hot QED atleading logarithmic order. It is shown that the Ward identity requires theinclusion of a new diagram in the integral equation for the vertex that has notbeen considered before. The real part of this diagram is subleading andtherefore the final expressions for the electrical conductivity at leadinglogarithmic order are not affected.Comment: 25 pages with 5 eps figures, discussion in section 3 improved; to appear in JHE

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research