A New Phase of QED in Strong Coupling: A Guide for the Perplexed

  • Elbio Dagotto
Part of the NATO ASI Series book series (NSSB, volume 255)


Recently, Quantum Electrodynamics (QED) in strong coupling has attracted much attention. By numerical and analytical techniques it has been found that a phase transition takes place separating the “normal” (weak coupling) phase of QED from a. region where chiral symmetry is spontaneously broken in the massless limit (strong coupling). This critical point (second order phase transition) opens the possibility of a. nontrivial continuum limit for QED. In these lectures I will briefly review lattice gauge theories results in strongly coupled electrodynamics. The motivation is presented, lattice techniques and results are described and the physical interpretation of the numerical data is discussed. Many other topics like QED in three dimensions, QED in strong fields, different nonperturbative techniques, etc. are also briefly reviewed. Most, of this work has been done in collaboration with A. Kocić, J. Kogut and S. Hands.


Strong Coupling Chiral Symmetry Continuum Limit Order Phase Transition Gauge Field 


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Copyright information

© Plenum Press, New York 1991

Authors and Affiliations

  • Elbio Dagotto
    • 1
  1. 1.Institute for Theoretical PhysicsUniversity of California at Santa BarbaraSanta BarbaraUSA

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