Journal
NUCLEAR PHYSICS A
Volume 828, Issue 1-2, Pages 178-190Publisher
ELSEVIER
DOI: 10.1016/j.nuclphysa.2009.06.020
Keywords
Strong color field; Instabilities; Thermalization; Relativistic heavy ion collision
Categories
Funding
- MEXT [18740169, 19540273]
- Grants-in-Aid for Scientific Research [19540273, 18740169] Funding Source: KAKEN
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A homogeneous color magnetic field is known to be unstable for the fluctuations perpendicular to the field in the color space (the Nielsen-Olesen instability). We argue that these unstable modes, exponentially growing, generate an azimuthal magnetic field with the original field being in the z-direction, which causes the Nielsen-Olesen instability for another type of fluctuations. The growth rate of the latter unstable mode increases with the momentum p(z) and can become larger that the former's growth rate which decreases with increasing p(z). These features may explain the interplay between the primary and secondary instabilities observed in the real-time simulation of a non-expanding glasma, i.e., stochastically generated anisotropic Yang-Mills fields without expansion. (C) 2009 Elsevier B.V. All rights reserved.
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