Pair creation in the early universe
Cl\'ement Stahl, Eckhard Strobel, She-Sheng Xue
TL;DR
This paper discusses the generalized Schwinger effect in the early universe, focusing on pair creation from electromagnetic and gravitational fields in de Sitter spacetime and analyzing the induced fermionic current.
Contribution
It presents a detailed analysis of pair creation mechanisms in the early universe and explores various limiting cases of the fermionic current in de Sitter spacetime.
Findings
Computed the expectation value of fermionic current in de Sitter spacetime
Analyzed different limiting cases of pair creation effects
Discussed physical interpretations of the results
Abstract
In the very early universe, a generalized Schwinger effect can create pairs from both electrical and gravitational fields. The expectation value of fermionic current induced by these newly created pairs has been recently computed in de Sitter spacetime. I will discuss different limiting cases of this result and some of its possible physical interpretations.
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Taxonomy
TopicsBlack Holes and Theoretical Physics · Cosmology and Gravitation Theories · Relativity and Gravitational Theory