Energy and momentum density of thermal gluon oscillations
نویسنده
چکیده
In the exact propagator for finite temperature gluons the location of the transverse and longitudinal poles in the gluon propagator are unknown functions of wave vector: ωT (k) and ωL(k). The residues of the poles, also unknown, fix the normalization of the one gluon vector potential and thus of the field strength. The naive energy density ~ E · ~ D + ~ B · ~ H is not correct because of dispersion. By keeping the modulations due to the source currents the energy density is shown to be ωT/V and ωL/V regardless of the functional form of ωT (k) and ωL(k). The momentum density is k/V . The resulting energy-momentum tensor is not symmetric.
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