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Dual Meissner effect and magnetic displacement currents
Tsuneo Suzuki1, Katsuya Ishiguro, Yoshihiro Mori
1Institute for Theoretical Physics, Kanazawa University, Kanazawa 920-1192, Japan.
Physical Review Letters
|May 21, 2005
Summary
The dual Meissner effect in SU(2) QCD occurs without monopoles, driven by magnetic displacement currents. This phenomenon, linked to gluon condensate, demonstrates mass generation for the Abelian electric field.
Area of Science:
- High Energy Physics
- Quantum Chromodynamics (QCD)
Background:
- The dual Meissner effect is a phenomenon in theoretical physics, often explained by the presence of magnetic monopoles.
- Understanding the mechanisms behind the dual Meissner effect is crucial for comprehending quark confinement in Quantum Chromodynamics (QCD).
Purpose of the Study:
- To investigate the dual Meissner effect in quenched SU(2) QCD under Landau gauge fixing.
- To determine if magnetic monopoles are essential for the dual Meissner effect.
- To explore the relationship between the dual Meissner effect and gluon condensates.
Main Methods:
- Utilizing quenched SU(2) QCD simulations.
- Applying Landau gauge fixing.
- Performing mean-field calculations.
Main Results:
- The dual Meissner effect was observed without the need for magnetic monopoles.
- Time-dependent magnetic displacement currents were identified as solenoidal currents that confine Abelian electric fields.
- A correlation was found between the dual Meissner effect and a gluon condensate (A(a)(mu)A(a)(mu) != 0) of mass dimension 2.
Conclusions:
- Magnetic monopoles are not a prerequisite for the dual Meissner effect in this context.
- The mass generation of the Abelian electric field, a key aspect of the dual Meissner effect, is linked to the gluon condensate.
- These findings offer new insights into non-perturbative aspects of QCD and quark confinement.