Refractive index in the viscous quark-gluon plasma

Under the framework of the viscous chromohydrodynamics, the gluon self-energy is derived for the quark-gluon plasma with shear viscosity. The viscous chromoelectric permittivity and chromomagnetic permeability are evaluated from the gluon self-energy, through which the chromorefraction index is inve...

Full description

Saved in:
Bibliographic Details
Published in:Physical review. D, Particles, fields, gravitation, and cosmology Particles, fields, gravitation, and cosmology, 2013-08, Vol.88 (4), Article 045014
Main Authors: Jiang, Bing-feng, Hou, De-fu, Li, Jia-rong, Gao, Yan-jun
Format: Article
Language:English
Subjects:
Cosmology
Dielectric constant
Frequency ranges
Gluons
Permeability
Permittivity
Poles
Quark-gluon plasma
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Under the framework of the viscous chromohydrodynamics, the gluon self-energy is derived for the quark-gluon plasma with shear viscosity. The viscous chromoelectric permittivity and chromomagnetic permeability are evaluated from the gluon self-energy, through which the chromorefraction index is investigated. The numerical analysis indicates that the chromorefractive index becomes negative in some frequency range. The starting point for that frequency range is around the chromoelectric permittivity pole, and the chromomagnetic permeability pole determines the endpoint. As [eta]/s increases, the frequency range for the negative refraction becomes wider.
ISSN:1550-7998
1550-2368
DOI:10.1103/PhysRevD.88.045014