{
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  "authors": [
    {
      "raw_name": "Gianluca Degli Esposti", 
      "affiliations": [
        {
          "country": "Germany", 
          "value": "Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstra\u00dfe 400, 01328 Dresden, Germany"
        }
      ], 
      "surname": "Degli Esposti", 
      "given_names": "Gianluca", 
      "full_name": "Degli Esposti, Gianluca"
    }, 
    {
      "raw_name": "Greger Torgrimsson", 
      "affiliations": [
        {
          "country": "Sweden", 
          "value": "Department of Physics, Ume\u00e5 University, SE-901 87 Ume\u00e5, Sweden"
        }
      ], 
      "surname": "Torgrimsson", 
      "given_names": "Greger", 
      "full_name": "Torgrimsson, Greger"
    }
  ], 
  "titles": [
    {
      "source": "APS", 
      "title": "Worldline instantons for the momentum spectrum of Schwinger pair production in spacetime dependent fields"
    }
  ], 
  "dois": [
    {
      "value": "10.1103/PhysRevD.107.056019"
    }
  ], 
  "publication_info": [
    {
      "journal_volume": "107", 
      "journal_title": "Physical Review D", 
      "material": "article", 
      "journal_issue": "5", 
      "year": 2023
    }
  ], 
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    "submission_number": "ac75b918ccff11eda920065bd8dc6b20"
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  "page_nr": [
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      "license": "CC-BY-4.0"
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  "copyright": [
    {
      "statement": "Published by the American Physical Society", 
      "year": "2023"
    }
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      "categories": [
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      "value": "2212.11578"
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  "abstracts": [
    {
      "source": "APS", 
      "value": "We show how to use the worldline-instanton formalism to calculate the momentum spectrum of the electron-positron pairs produced by an electric field that depends on both space and time. Using the Lehmann-Symanzik-Zimmermann (LSZ) reduction formula with a worldline representation for the propagator in a spacetime field, we make use of the saddle-point method to obtain a semiclassical approximation of the pair-production spectrum. To check the final result, we integrate the spectrum and compare with the results obtained using a previous instanton method for the imaginary part of the effective action."
    }
  ], 
  "imprints": [
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      "date": "2023-03-27", 
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