{
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  "authors": [
    {
      "affiliations": [
        {
          "country": "Venezuela", 
          "value": "Departamento de F\u00edsica, Facultad de Ciencias, Universidad Central de Venezuela, Av. Los Ilustres, Caracas, 1041-A, Venezuela", 
          "organization": "Universidad Central de Venezuela"
        }, 
        {
          "country": "USA", 
          "value": "Astrum Drive Technologies, 13024 Dallas Pkwy Unit #120 B, Frisco, TX, 75034, USA", 
          "organization": "Astrum Drive Technologies"
        }
      ], 
      "surname": "Abell\u00e1n", 
      "email": "gabriel.abellan@ciens.ucv.ve", 
      "full_name": "Abell\u00e1n, Gabriel", 
      "given_names": "Gabriel"
    }, 
    {
      "affiliations": [
        {
          "country": "Venezuela", 
          "value": "Departamento de F\u00edsica, Facultad de Ciencias, Universidad Central de Venezuela, Av. Los Ilustres, Caracas, 1041-A, Venezuela", 
          "organization": "Universidad Central de Venezuela"
        }, 
        {
          "country": "Argentina", 
          "value": "Instituto Balseiro, Centro At\u00f3mico Bariloche, Comisi\u00f3n Nacional de Energ\u00eda At\u00f3mica (CNEA), Universidad Nacional de Cuyo (UNCUYO), Bariloche, 8400, Argentina", 
          "organization": "Centro At\u00f3mico Bariloche, Comisi\u00f3n Nacional de Energ\u00eda At\u00f3mica (CNEA), Universidad Nacional de Cuyo (UNCUYO)"
        }, 
        {
          "country": "USA", 
          "value": "Astrum Drive Technologies, 13024 Dallas Pkwy Unit #120 B, Frisco, TX, 75034, USA", 
          "organization": "Astrum Drive Technologies"
        }
      ], 
      "surname": "Bolivar", 
      "email": "nelsonbolivar@cnea.gob.ar", 
      "full_name": "Bolivar, Nelson", 
      "given_names": "Nelson"
    }, 
    {
      "affiliations": [
        {
          "country": "Bulgaria", 
          "value": "Technical University of Sofia, Sofia, 1000, Bulgaria", 
          "organization": "Technical University of Sofia"
        }, 
        {
          "country": "USA", 
          "value": "Astrum Drive Technologies, 13024 Dallas Pkwy Unit #120 B, Frisco, TX, 75034, USA", 
          "organization": "Astrum Drive Technologies"
        }
      ], 
      "surname": "Vasilev", 
      "email": "ivaylo.vasilev@tu-sofia.bg", 
      "full_name": "Vasilev, Ivaylo", 
      "given_names": "Ivaylo"
    }
  ], 
  "titles": [
    {
      "source": "Springer", 
      "title": "Alcubierre warp drive in spherical coordinates with some matter configurations"
    }
  ], 
  "dois": [
    {
      "value": "10.1140/epjc/s10052-022-11091-5"
    }
  ], 
  "publication_info": [
    {
      "page_end": "8", 
      "journal_title": "European Physical Journal C", 
      "material": "article", 
      "journal_volume": "83", 
      "artid": "s10052-022-11091-5", 
      "year": 2023, 
      "page_start": "1", 
      "journal_issue": "1"
    }
  ], 
  "$schema": "http://repo.scoap3.org/schemas/hep.json", 
  "acquisition_source": {
    "date": "2023-03-10T21:32:20.971782", 
    "source": "Springer", 
    "method": "Springer", 
    "submission_number": "b6222fd2bf8a11eda920065bd8dc6b20"
  }, 
  "page_nr": [
    8
  ], 
  "license": [
    {
      "url": "https://creativecommons.org/licenses//by/4.0", 
      "license": "CC-BY-4.0"
    }
  ], 
  "copyright": [
    {
      "holder": "The Author(s)", 
      "year": "2022"
    }
  ], 
  "control_number": "76331", 
  "record_creation_date": "2023-03-10T21:32:20.971804", 
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  "collections": [
    {
      "primary": "European Physical Journal C"
    }
  ], 
  "abstracts": [
    {
      "source": "Springer", 
      "value": "In this work we introduce the Alcubierre warp metric using spherical symmetry. In this way we write the Einstein equations for a perfect fluid and for an anisotropic fluid with cosmological constant. Analysing the energy conditions for both cases, we find that these cases are flexible enough to allow them to be satisfied. We also find that in the time-independent case of the warp bubble, the metric admits a timelike Killing vector and all the energy conditions are satisfied except for the strong energy condition. Moreover, in the time-independent case a barotropic equation of state known from cosmological models naturally arises."
    }
  ], 
  "imprints": [
    {
      "date": "2023-01-09", 
      "publisher": "Springer"
    }
  ]
}