Finite-Temperature Thermodynamic Potential of Two-Loop QED and Overlapping Divergences at Arbitrary Gauge

  • The dimensional regularization at finite temperature is applied to calculate accurately the thermodynamic potential of two-loop QED and the overlapping divergences at arbitrary gauge.It indicates that the overlapping divergences are cancelled with each other and the result is gauge-independent.
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  • [1] J.L.Kapusta,”Finite-Temperature Field Theory“(Cambarige Univ.Press,1989).[2] L.Ojima,Ann.of Phys.,137(1981)1.[3] G.'t Hooft,M.Veltman,Nucl.Phys,B44(1972)189;C.G.Bollini,J.J.Giambiagi,Nuovo Cimento,12B(1972)20.[4] Y.Fujimoto,Hou Defu,Phys,Lett,B335(1994)87.[5] J.F.Donoghue et al.,Ann.of Phys,164(1985)233.[6] R.L.Kobes,G.W.Semenoff,Nucl.Phys,B260(1985)714.[7] R.D.Pisarski,Phys.Rev,D47(1993)5589.
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Hou Defu and Li Jiarong. Finite-Temperature Thermodynamic Potential of Two-Loop QED and Overlapping Divergences at Arbitrary Gauge[J]. Chinese Physics C, 1995, 19(11): 998-1004.
Hou Defu and Li Jiarong. Finite-Temperature Thermodynamic Potential of Two-Loop QED and Overlapping Divergences at Arbitrary Gauge[J]. Chinese Physics C, 1995, 19(11): 998-1004. shu
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Received: 1900-01-01
Revised: 1900-01-01
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Finite-Temperature Thermodynamic Potential of Two-Loop QED and Overlapping Divergences at Arbitrary Gauge

    Corresponding author: Hou Defu,
  • Institute of Particle Physics,Hua-Zhong Normal University,Wuhan 430070

Abstract: The dimensional regularization at finite temperature is applied to calculate accurately the thermodynamic potential of two-loop QED and the overlapping divergences at arbitrary gauge.It indicates that the overlapping divergences are cancelled with each other and the result is gauge-independent.

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