Abstract
The order e 5 contribution to the pressure of massless quantum electrodynamics at nonzero temperature is determined explicitly. An identity is also obtained relating a gauge-invariant piece of the pressure at order e 2 n+3 ( n ⩾ 1) (from diagrams with only one fermion loop) to the pressure at order e 2 n . Prospects for higher order calculations are discussed and potential applications are mentioned.
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