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arXiv · 1906.10180

Renormalisation in Open Quantum Field theory II: Yukawa theory and PV reduction

Avinash·Chandan Jana·Arnab Rudra
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Abstract

We compute Passarino-Veltman (PV) reduction for tensor loop integrals, that appear in open field theories. We apply these results to open-Yukawa theory and compute the self-energy correction of the fields. We found that non-local divergences show up in the one loop correction to the fermionic self-energy. These non-local divergences do not disappear even if the tree level theory is chosen to satisfy the trace preserving condition of the density matrix.

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Avinash, Chandan Jana, Arnab Rudra. 2019-06-24. Renormalisation in Open Quantum Field theory II: Yukawa theory and PV reduction. https://arxiv.org/abs/1906.10180

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