Photon sector of quantum electrodynamics at high temperature in two spatial dimensions
The photon sector of quantum electrodynamics (QED) in two spatial dimensions is analyzed at high temperature to all orders of perturbation theory. Imaginary-time formalism is used. The photon self-energy and propagator at finite temperature with vanishing frequency is calculated to the second order of perturbation theory. Based upon the latter, an improved perturbation theory which incorporated Debye screening is formulated. By virtue of the latter and gauge invariance, infrared finitness holds. The temperature dependence of any contribution to the connected Green's functions in the improved perturbation theory is analyzed systematically. At very high temperature, the photon sector becomes equivalent to a very massive scalar boson field plus a massless electromagnetic field and both become decoupled: all connected Green's functions containing, at least, one closed fermion loop with four or more vertices are shown to tend to zero. copyright 1987 Academic Press, Inc.
- Research Organization:
- Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 6640145
- Journal Information:
- Ann. Phys. (N.Y.); (United States), Journal Name: Ann. Phys. (N.Y.); (United States) Vol. 174:2; ISSN APNYA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Radiative corrections to the Casimir Pressure under the influence of temperature and external fields
Screening of static electromagnetic fields in hot QED plasmas
Related Subjects
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELECTRODYNAMICS
ELEMENTARY PARTICLES
ENERGY
FIELD THEORIES
FUNCTIONS
GAUGE INVARIANCE
GREEN FUNCTION
INVARIANCE PRINCIPLES
MASSLESS PARTICLES
PERTURBATION THEORY
PHOTONS
PROPAGATOR
QUANTUM ELECTRODYNAMICS
QUANTUM FIELD THEORY
SELF-ENERGY
TEMPERATURE DEPENDENCE
TWO-DIMENSIONAL CALCULATIONS