Pair creation, backreaction, and resummation in strong fields

Patrick Copinger, James P. Edwards, Anton Ilderton, Karthik Rajeev

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

We revisit particle creation in strong fields, and backreaction on those fields, from an amplitudes perspective. We describe the strong field by an initial coherent state of photons which we explicitly evolve in time, thus going beyond the background field approximation, and then consider observables which quantify the effects of backreaction. We present expressions for the waveform, vacuum persistence probability, and number of produced photons at next-to-leading order, all of which are impacted by backreaction, along with the number and statistics of produced pairs. We find that converting between in-out (amplitude) and in-in (expectation value) expressions requires explicit resummation of an infinite number of disconnected loop diagrams.
Original languageEnglish
Article number036009
Pages (from-to)1-19
Number of pages19
JournalPhysical Review D
Volume111
Issue number3
DOIs
Publication statusPublished - 6 Feb 2025

Keywords / Materials (for Non-textual outputs)

  • hep-ph
  • hep-th

Cite this