Hard-thermal-loop QED thermodynamics

Su N, Andersen JO, Strickland M (2009)
Chin.Phys.C 34(9): 1527-1529.

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Abstract
The weak-coupling expansion for thermodynamic quantities in thermal fieldtheories is poorly convergent unless the coupling constant is tiny. We discussthe calculation of the free energy for a hot gas of electrons and photons tothree-loop order using hard-thermal-loop perturbation theory (HTLpt). We showthat the hard-thermal-loop perturbation reorganization improves the convergenceof the successive approximations to the QED free energy at large coupling, e ~2. The reorganization is gauge invariant by construction, and due to thecancellations among various contributions, we obtain a completely analyticresult for the resummed thermodynamic potential at three loops.
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Su N, Andersen JO, Strickland M. Hard-thermal-loop QED thermodynamics. Chin.Phys.C. 2009;34(9):1527-1529.
Su, N., Andersen, J. O., & Strickland, M. (2009). Hard-thermal-loop QED thermodynamics. Chin.Phys.C, 34(9), 1527-1529.
Su, N., Andersen, J. O., and Strickland, M. (2009). Hard-thermal-loop QED thermodynamics. Chin.Phys.C 34, 1527-1529.
Su, N., Andersen, J.O., & Strickland, M., 2009. Hard-thermal-loop QED thermodynamics. Chin.Phys.C, 34(9), p 1527-1529.
N. Su, J.O. Andersen, and M. Strickland, “Hard-thermal-loop QED thermodynamics”, Chin.Phys.C, vol. 34, 2009, pp. 1527-1529.
Su, N., Andersen, J.O., Strickland, M.: Hard-thermal-loop QED thermodynamics. Chin.Phys.C. 34, 1527-1529 (2009).
Su, Nan, Andersen, Jens O., and Strickland, Michael. “Hard-thermal-loop QED thermodynamics”. Chin.Phys.C 34.9 (2009): 1527-1529.
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