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  "authors": [
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      "affiliations": [
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          "country": "Chile", 
          "value": "Facultad de Artes Liberales, Universidad Adolfo Ib\u00e1\u00f1ez, Diagonal Las Torres, Santiago, 2640, Chile", 
          "organization": "Universidad Adolfo Ib\u00e1\u00f1ez"
        }
      ], 
      "surname": "Gonz\u00e1lez", 
      "email": "hernan.gonzalez@uai.cl", 
      "full_name": "Gonz\u00e1lez, Hern\u00e1n", 
      "given_names": "Hern\u00e1n"
    }, 
    {
      "affiliations": [
        {
          "country": "Chile", 
          "value": "Instituto de F\u00edsica, Pontificia Universidad Cat\u00f3lica de Valpara\u00edso, Avda. Universidad 330, Curauma, Valpara\u00edso, Chile", 
          "organization": "Pontificia Universidad Cat\u00f3lica de Valpara\u00edso"
        }
      ], 
      "surname": "Labrin", 
      "email": "orianalabrinz@gmail.com", 
      "full_name": "Labrin, Oriana", 
      "given_names": "Oriana"
    }, 
    {
      "affiliations": [
        {
          "country": "Chile", 
          "value": "Instituto de F\u00edsica, Pontificia Universidad Cat\u00f3lica de Valpara\u00edso, Avda. Universidad 330, Curauma, Valpara\u00edso, Chile", 
          "organization": "Pontificia Universidad Cat\u00f3lica de Valpara\u00edso"
        }
      ], 
      "surname": "Miskovic", 
      "email": "olivera.miskovic@pucv.cl", 
      "full_name": "Miskovic, Olivera", 
      "given_names": "Olivera"
    }
  ], 
  "titles": [
    {
      "source": "Springer", 
      "title": "Kac-Moody symmetry in the light front of gauge theories"
    }
  ], 
  "dois": [
    {
      "value": "10.1007/JHEP06(2023)165"
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      "page_end": "28", 
      "journal_title": "Journal of High Energy Physics", 
      "material": "article", 
      "journal_volume": "2023", 
      "artid": "JHEP06(2023)165", 
      "year": 2023, 
      "page_start": "1", 
      "journal_issue": "6"
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    "source": "Springer", 
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    "submission_number": "7ecceed25a7111ee9688729695cabdc8"
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      "license": "CC-BY-4.0"
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  "copyright": [
    {
      "holder": "The Author(s)", 
      "year": "2023"
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  "control_number": "78564", 
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  "arxiv_eprints": [
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      "categories": [
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        "gr-qc"
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      "value": "2304.03211"
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  "abstracts": [
    {
      "source": "Springer", 
      "value": "We discuss the emergence of a new symmetry generator in a Hamiltonian realisation of four-dimensional gauge theories in the flat space foliated by retarded (advanced) time. It generates an asymptotic symmetry that acts on the asymptotic fields in a way different from the usual large gauge transformations. The improved canonical generators, corresponding to gauge and asymptotic symmetries, form a classical Kac-Moody charge algebra with a non-trivial central extension. In particular, we describe the case of electromagnetism, where the charge algebra is the U(1) current algebra with a level proportional to the coupling constant of the theory, \u03ba = 4\u03c0 2/e 2. We construct bilinear generators yielding Virasoro algebras on the null boundary. We also provide a non-Abelian generalization of the previous symmetries by analysing the evolution of Yang-Mills theory in Bondi coordinates."
    }
  ], 
  "imprints": [
    {
      "date": "2023-06-26", 
      "publisher": "Springer"
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