{
  "_oai": {
    "updated": "2023-05-31T00:30:23Z", 
    "id": "oai:repo.scoap3.org:77967", 
    "sets": [
      "PRD"
    ]
  }, 
  "authors": [
    {
      "raw_name": "An\u00edbal Fa\u00fandez", 
      "affiliations": [
        {
          "country": "Chile", 
          "value": "Instituto de F\u00edsica, Pontificia Universidad Cat\u00f3lica de Valpara\u00edso, Av. Brasil 2950, Valpara\u00edso, Chile"
        }
      ], 
      "surname": "Fa\u00fandez", 
      "given_names": "An\u00edbal", 
      "full_name": "Fa\u00fandez, An\u00edbal"
    }, 
    {
      "raw_name": "Radouane Gannouji", 
      "affiliations": [
        {
          "country": "Chile", 
          "value": "Instituto de F\u00edsica, Pontificia Universidad Cat\u00f3lica de Valpara\u00edso, Av. Brasil 2950, Valpara\u00edso, Chile"
        }
      ], 
      "surname": "Gannouji", 
      "given_names": "Radouane", 
      "full_name": "Gannouji, Radouane"
    }
  ], 
  "titles": [
    {
      "source": "APS", 
      "title": "<math><mi>Q</mi></math>-balls in <math><mi>K</mi></math>-field theory"
    }
  ], 
  "dois": [
    {
      "value": "10.1103/PhysRevD.107.104058"
    }
  ], 
  "publication_info": [
    {
      "journal_volume": "107", 
      "journal_title": "Physical Review D", 
      "material": "article", 
      "journal_issue": "10", 
      "year": 2023
    }
  ], 
  "$schema": "http://repo.scoap3.org/schemas/hep.json", 
  "acquisition_source": {
    "date": "2023-05-31T00:30:15.933682", 
    "source": "APS", 
    "method": "APS", 
    "submission_number": "46efd63cff4a11ed8e62c23b20d38f61"
  }, 
  "page_nr": [
    11
  ], 
  "license": [
    {
      "url": "https://creativecommons.org/licenses/by/4.0/", 
      "license": "CC-BY-4.0"
    }
  ], 
  "copyright": [
    {
      "statement": "Published by the American Physical Society", 
      "year": "2023"
    }
  ], 
  "control_number": "77967", 
  "record_creation_date": "2023-05-30T18:30:25.908593", 
  "_files": [
    {
      "checksum": "md5:3d6891af446ba6044e6f0994aa183e12", 
      "filetype": "pdf", 
      "bucket": "ee88027b-3b2d-40c3-b289-d13d8e8738a8", 
      "version_id": "4c90b87a-b02e-434b-afcc-d9ab5dd1b57c", 
      "key": "10.1103/PhysRevD.107.104058.pdf", 
      "size": 1546578
    }, 
    {
      "checksum": "md5:fb07aba3220e5af592fc2da859c7ea70", 
      "filetype": "xml", 
      "bucket": "ee88027b-3b2d-40c3-b289-d13d8e8738a8", 
      "version_id": "a4bc31a4-949b-4570-b04b-074bf61d33cd", 
      "key": "10.1103/PhysRevD.107.104058.xml", 
      "size": 212863
    }
  ], 
  "collections": [
    {
      "primary": "HEP"
    }, 
    {
      "primary": "Citeable"
    }, 
    {
      "primary": "Published"
    }
  ], 
  "arxiv_eprints": [
    {
      "categories": [
        "hep-th", 
        "gr-qc", 
        "hep-ph"
      ], 
      "value": "2301.05890"
    }
  ], 
  "abstracts": [
    {
      "source": "APS", 
      "value": "We study the existence and stability of <math><mi>Q</mi></math>-balls in noncanonical scalar field theories, <math><mrow><mi>K</mi><mo>(</mo><mo>|</mo><mi>\u03a6</mi><msup><mrow><mo>|</mo></mrow><mrow><mn>2</mn></mrow></msup><mo>,</mo><mi>X</mi><mo>)</mo></mrow></math>, where <math><mi>\u03a6</mi></math> is the complex scalar field and <math><mi>X</mi></math> is the kinetic term. We extend the Vakhitov-Kolokolov stability criterion to <math><mi>K</mi></math>-field theories. We derive the condition for the perturbations to have a well-posed Cauchy problem. We find that <math><mrow><msub><mrow><mi>K</mi></mrow><mrow><mo>,</mo><mi>X</mi></mrow></msub><mo>&gt;</mo><mn>0</mn></mrow></math> and <math><mrow><msub><mrow><mi>K</mi></mrow><mrow><mo>,</mo><mi>X</mi></mrow></msub><mo>+</mo><mi>X</mi><msub><mrow><mi>K</mi></mrow><mrow><mo>,</mo><mi>X</mi><mi>X</mi></mrow></msub><mo>&gt;</mo><mn>0</mn></mrow></math> are necessary but not sufficient conditions. The perturbations define a strongly hyperbolic system if <math><mrow><mo>(</mo><msub><mrow><mi>K</mi></mrow><mrow><mo>,</mo><mi>X</mi></mrow></msub><mo>\u2212</mo><mn>2</mn><msup><mrow><mi>\u03d5</mi></mrow><mrow><mo>\u2032</mo><mn>2</mn></mrow></msup><msub><mrow><mi>K</mi></mrow><mrow><mo>,</mo><mi>X</mi><mi>X</mi></mrow></msub><mo>)</mo><mo>(</mo><msub><mrow><mi>K</mi></mrow><mrow><mo>,</mo><mi>X</mi></mrow></msub><mo>+</mo><mn>2</mn><msup><mrow><mi>\u03c9</mi></mrow><mrow><mn>2</mn></mrow></msup><msup><mrow><mi>\u03d5</mi></mrow><mrow><mn>2</mn></mrow></msup><msub><mrow><mi>K</mi></mrow><mrow><mo>,</mo><mi>X</mi><mi>X</mi></mrow></msub><mo>)</mo><mo>&gt;</mo><mn>0</mn></mrow></math>. For all modifications studied, we found that perturbations propagate at a speed different from light. Generically, the noncanonical scalar field can lower the charge and energy of the <math><mi>Q</mi></math>-ball and therefore improves its stability."
    }
  ], 
  "imprints": [
    {
      "date": "2023-05-30", 
      "publisher": "APS"
    }
  ]
}