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Thermal Self-Energies Using Light-Front Quantization

H. Arthur Weldon
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Abstract

A recent paper by Alves, Das, and Perez contains a calculation of the one-loop self-energy in ϕ^{3} field theory at T\neq 0 using light-front quantization and concludes that the self-energy is different than the conventional answer and is not rotationally invariant. The changes of variables displayed below show that despite the complicated appearance of the thermal self-energy in light-front variables, it is exactly the same as the conventional result.

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H. Arthur Weldon. 2003-04-09. Thermal Self-Energies Using Light-Front Quantization. https://doi.org/10.1103/physrevd.67.128701

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