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Related Experiment Videos

Permanent confinement in the compact QED3 with fermionic matter.

Igor F Herbut1, Babak H Seradjeh

  • 1Department of Physics, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6.

Physical Review Letters
|November 13, 2003
PubMed
Summary

The compact three-dimensional electrodynamics with massless relativistic fermions remains confined. Fermions screen monopole interactions, preventing phase transitions and impacting chiral symmetry breaking.

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Area of Science:

  • * Theoretical physics
  • * Quantum field theory
  • * Condensed matter physics

Background:

  • * Understanding phase transitions in quantum field theories is crucial for fundamental physics.
  • * Compact three-dimensional electrodynamics with massless relativistic fermions presents a unique theoretical challenge.
  • * The role of magnetic monopoles and screening effects in such systems requires detailed investigation.

Purpose of the Study:

  • * To determine the phase of compact three-dimensional electrodynamics with massless relativistic fermions.
  • * To investigate the impact of fermion screening on magnetic monopole interactions.
  • * To explore potential implications for chiral symmetry breaking and propose a global phase diagram.

Main Methods:

  • * Analytical techniques in quantum field theory.

Related Experiment Videos

  • * Analysis of interaction potentials between magnetic monopoles.
  • * Renormalization group methods to study screening effects.
  • * Investigation of fermion behavior and symmetry breaking.

    • Main Results:

    • * The theory is shown to be always in the confined phase, irrespective of fermion presence.
    • * Fermions induce screening of magnetic monopole interactions, transforming logarithmic potentials into Coulombic ones at large distances.
    • * The study provides insights into the conditions for chiral symmetry breaking.

    Conclusions:

    • * Compact three-dimensional electrodynamics with massless relativistic fermions is fundamentally confined.
    • * Fermion-mediated screening is a key mechanism determining the theory's phase.
    • * The proposed global phase diagram offers a comprehensive view of the theory's behavior.