Quick search Find article
Quick search
Find article

Ward identity and electrical conductivity in hot QED

Gert Aarts1 and Jose M. Martínez Resco1

Show affiliations


We study the Ward identity for the effective photon-electron vertex summing the ladder diagrams contributing to the electrical conductivity in hot QED at leading logarithmic order. It is shown that the Ward identity requires the inclusion of a new diagram in the integral equation for the vertex that has not been considered before. The real part of this diagram is subleading and therefore the final expressions for the electrical conductivity at leading logarithmic order are not affected.


Keywords

Thermal Field Theory

Gauge Symmetry

PACS

12.20.Ds Specific calculations

11.30.-j Symmetry and conservation laws

13.66.Lm Processes in other lepton-lepton interactions

11.10.Wx Finite-temperature field theory

Subjects

Particle physics and field theory

Dates

Issue 11 (November 2002)

Received 5 September 2002, accepted for publication 13 November 2002

Published 27 November 2002



  1. Ward identity and electrical conductivity in hot QED

    Gert Aarts and Jose M. Martínez Resco JHEP11(2002)022

  2. Transport coefficients in large Nf gauge theories with massive fermions

    Gert Aarts and Jose M. Martínez Resco JHEP03(2005)074

  3. Meson spectral functions with chirally symmetric lattice fermions

    UKQCD Collaboration et al JHEP02(2007)062

  4. Shear viscosity in the O(N) model

    Gert Aarts and Jose M. Martínez Resco JHEP02(2004)061

  5. Transport coefficients, spectral functions and the lattice

    Gert Aarts and Jose María Martínez Resco JHEP04(2002)053

  6. Stochastic quantization at finite chemical potential

    Gert Aarts and Ion-Olimpiu Stamatescu JHEP09(2008)018

  7. Complex Langevin dynamics at finite chemical potential: mean field analysis in the relativistic Bose gas

    Gert Aarts JHEP05(2009)052

  8. Influence of composition and well-width fluctuations on optical gain in (In, Ga)N multiple quantum wells

    M Vehse et al 2001 Semicond. Sci. Technol. 16 406

  9. Collective decoherence of cold atoms coupled to a Bose–Einstein condensate

    M A Cirone et al 2009 New J. Phys. 11 103055

  10. A Comparison between Methods to Compute Lyapunov Exponents

    G. Tancredi et al. 2001 The Astronomical Journal 121 1171

View by subject




Export








Please login to access our web services, or create an account if you don't yet have one.

You must have cookies enabled in your web browser to be able to login.

Username
Password

Forgotten your password? Get a new one here.