Color-flavor locked superconductor in a magnetic field

Journal Article · Thu Nov 15 04:00:00 EST 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.76.105030· OSTI ID:21027908

Noronha, Jorge L ^[1]; Shovkovy, Igor A ^[2]

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1. Frankfurt Institute for Advanced Studies, J.W. Goethe-Universitaet, D-60438 Frankfurt (Germany)
2. Department of Physics, Western Illinois University, Macomb, Illinois 61455 (United States)

We study the effects of moderately strong magnetic fields on the properties of color-flavor locked color superconducting quark matter in the framework of the Nambu-Jona-Lasinio model. We find that the energy gaps, which describe the color superconducting pairing as well as the magnetization, are oscillating functions of the magnetic field. Also, we observe that the oscillations of the magnetization can be so strong that homogeneous quark matter becomes metastable for a range of parameters. We suggest that this points to the possibility of magnetic domains or other types of magnetic inhomogeneities in the quark cores of magnetars.

• OSTI ID: 21027908
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 10 Vol. 76; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COLOR MODEL
ENERGY GAP
FLAVOR MODEL
MAGNETIC FIELDS
MAGNETIZATION
OSCILLATIONS
QUANTUM FIELD THEORY
QUARK MATTER
QUARKS
SUPERCONDUCTORS