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arXiv · 2010.13453

Schwinger Effect in Compact Space

Prasant Samantray·Suprit Singh
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Abstract

We consider a theory of scalar QED on a spatially compact 1+1-dimensional spacetime. By considering a constant electric field pointing down the compact dimension, we compute the quantum effective action by integrating out the scalar degrees of freedom in the Euclidean sector. Working in the saddle-point approximation we uncover two novel branches/physical regimes upon analytically continuing back to real time and discover a new result, hitherto unreported in previous literature. Implications of our results are discussed.

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Prasant Samantray, Suprit Singh. 2020-10-26. Schwinger Effect in Compact Space. https://doi.org/10.1103/physrevd.103.125012

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