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Magnetic fields boosted by gluon vortices in color superconductivity
Efrain J Ferrer1, Vivian de la Incera
1Department of Physics, Western Illinois University, Macomb, IL 61455, USA.
Physical Review Letters
|October 10, 2006
Summary
An external magnetic field can destabilize color superconductors, creating a vortex state with magnetic flux tubes. This phenomenon, linked to gluon properties, may resolve instabilities in related superconducting states.
Area of Science:
- High-energy physics
- Condensed matter physics
- Quantum chromodynamics
Background:
- Color superconductors are exotic states of matter formed by quarks at extremely high densities.
- External magnetic fields can significantly alter the properties of these superconductors.
- Understanding gluon dynamics is crucial for comprehending superconductivity in dense quark matter.
Purpose of the Study:
- To investigate the impact of external magnetic fields on gluon dynamics in a three-flavor, massless quark color superconductor.
- To explore the formation of novel states of matter under extreme conditions.
Main Methods:
- Utilizing gluon mean-field theory at asymptotic densities.
- Analyzing the behavior of the color-flavor locked phase under an external magnetic field.
- Investigating the Meissner mass of charged gluons.
Main Results:
- An external magnetic field exceeding the Meissner mass of charged gluons induces an instability in the color-flavor locked phase.
- This instability leads to the formation of a vortex state with condensed charged gluons and magnetic flux tubes.
- An antiscreening effect within flux tubes enhances the magnetic field, linked to the gluon's anomalous magnetic moment.
Conclusions:
- The magnetic field-induced vortex state offers a mechanism to stabilize color superconductors.
- This finding may provide a solution for chromomagnetic instabilities in gapless color superconductivity.
- The study highlights the complex interplay between magnetic fields and gluon dynamics in extreme environments.
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