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Pair production is the creation of an elementary particle and its antiparticle out of a neutral boson, typically a photon, but sometimes a gluon.
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Schwinger approach using the heat kernel [closed]
I am having trouble calculating the effective action for a constant magnetic background. The calculations I am trying to replicate are from this paper: https://arxiv.org/abs/hep-th/9807031. The effect …
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Euler-Heisenberg Lagrangian & heat kernel: Why do we need to substitute $s \to -is$ to conti...
Starting from the general effective lagrangian for a constant background electromagnetic field,
$$\mathcal{L}_{\mathrm{EH}}=-\frac{1}{4}F_{\mu\nu}^{2}-\frac{e^{2}}{32\pi^{2}}\int_{0}^{\infty}\frac{ds} …
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Underlying correspondence of calculating the imaginary part of the effective Lagrangian in sQED
I was wondering if there is a correspondence/underlying equivalence between the heat kernel, tunnelling, and Bogolubov approaches for calculating the imaginary part of the effective Lagrangian in sQED …