{
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  "authors": [
    {
      "affiliations": [
        {
          "country": "France", 
          "value": "Laboratoire d\u2019Annecy-le-Vieux de Physique Th\u00e9orique (LAPTh), CNRS, Universit\u00e9 Savoie Mont Blanc (USMB), UMR 5108, 9 Chemin de Bellevue, Annecy, 74940, France", 
          "organization": "Laboratoire d\u2019Annecy-le-Vieux de Physique Th\u00e9orique (LAPTh), CNRS, Universit\u00e9 Savoie Mont Blanc (USMB), UMR 5108"
        }
      ], 
      "surname": "Andriot", 
      "email": "andriot@lapth.cnrs.fr", 
      "full_name": "Andriot, David", 
      "given_names": "David"
    }, 
    {
      "affiliations": [
        {
          "country": "France", 
          "value": "Laboratoire d\u2019Annecy-le-Vieux de Physique Th\u00e9orique (LAPTh), CNRS, Universit\u00e9 Savoie Mont Blanc (USMB), UMR 5108, 9 Chemin de Bellevue, Annecy, 74940, France", 
          "organization": "Laboratoire d\u2019Annecy-le-Vieux de Physique Th\u00e9orique (LAPTh), CNRS, Universit\u00e9 Savoie Mont Blanc (USMB), UMR 5108"
        }, 
        {
          "country": "Austria", 
          "value": "Institute for Theoretical Physics, TU Wien, Wiedner Hauptstrasse 8-10/136, Vienna, A-1040, Austria", 
          "organization": "TU Wien"
        }
      ], 
      "surname": "Horer", 
      "email": "ludwig.horer@tuwien.ac.at", 
      "full_name": "Horer, Ludwig", 
      "given_names": "Ludwig"
    }
  ], 
  "titles": [
    {
      "source": "Springer", 
      "title": "(Quasi-) de Sitter solutions across dimensions and the TCC bound"
    }
  ], 
  "dois": [
    {
      "value": "10.1007/JHEP01(2023)020"
    }
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      "page_end": "47", 
      "journal_title": "Journal of High Energy Physics", 
      "material": "article", 
      "journal_volume": "2023", 
      "artid": "JHEP01(2023)020", 
      "year": 2023, 
      "page_start": "1", 
      "journal_issue": "1"
    }
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    "submission_number": "7a780660e3c911ed80743e7708eaa62a"
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  "page_nr": [
    47
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  "license": [
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      "url": "https://creativecommons.org/licenses//by/4.0", 
      "license": "CC-BY-4.0"
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  "copyright": [
    {
      "holder": "The Author(s)", 
      "year": "2023"
    }
  ], 
  "control_number": "74964", 
  "record_creation_date": "2023-01-11T09:30:21.969230", 
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  "collections": [
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      "primary": "Journal of High Energy Physics"
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  "arxiv_eprints": [
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        "astro-ph.CO", 
        "gr-qc", 
        "hep-ph"
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      "value": "2208.14462"
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  "abstracts": [
    {
      "source": "Springer", 
      "value": "In this work, we investigate the existence of string theory solutions with a d-dimensional (quasi-) de Sitter spacetime, for 3 \u2264 d \u2264 10. Considering classical compactifications, we derive no-go theorems valid for general d. We use them to exclude (quasi-) de Sitter solutions for d \u2265 7. In addition, such solutions are found unlikely to exist in d = 6, 5. For each no-go theorem, we further compute the d-dependent parameter c of the swampland de Sitter conjecture,   <math> <msub> <mi>M</mi> <mi>p</mi> </msub> <mfrac> <mrow> <mo>\u2223</mo> <mo>\u2207</mo> <mi>V</mi> <mo>\u2223</mo> </mrow> <mi>V</mi> </mfrac> <mo>\u2265</mo> <mi>c</mi> </math>  $$ {M}_p\\frac{\\mid \\nabla V\\mid }{V}\\ge c $$ . Remarkably, the TCC bound   <math> <mi>c</mi> <mo>\u2265</mo> <mfrac> <mn>2</mn> <msqrt> <mrow> <mfenced> <mrow> <mi>d</mi> <mo>\u2212</mo> <mn>1</mn> </mrow> </mfenced> <mfenced> <mrow> <mi>d</mi> <mo>\u2212</mo> <mn>2</mn> </mrow> </mfenced> </mrow> </msqrt> </mfrac> </math>  $$ c\\ge \\frac{2}{\\sqrt{\\left(d-1\\right)\\left(d-2\\right)}} $$  is then perfectly satisfied for d \u2265 4, with several saturation cases. However, we observe a violation of this bound in d = 3. We finally comment on related proposals in the literature, on the swampland distance conjecture and its decay rate, and on the so-called accelerated expansion bound."
    }
  ], 
  "imprints": [
    {
      "date": "2023-01-09", 
      "publisher": "Springer"
    }
  ]
}