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  "authors": [
    {
      "raw_name": "Marek Kozo\u0148", 
      "affiliations": [
        {
          "country": "Czech Republic", 
          "value": "Institute of Theoretical Physics, Faculty of Mathematics and Physics, Charles University in Prague, V Hole\u0161ovi\u010dk\u00e1ch 2, CZ-180 00 Praha 8, Czech Republic"
        }, 
        {
          "country": "Germany", 
          "value": "Institut f\u00fcr Theoretische Physik, Universit\u00e4t Leipzig, Br\u00fcderstr. 16, 04103 Leipzig, Germany"
        }
      ], 
      "surname": "Kozo\u0148", 
      "given_names": "Marek", 
      "full_name": "Kozo\u0148, Marek"
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    {
      "raw_name": "Jochen Zahn", 
      "affiliations": [
        {
          "country": "Germany", 
          "value": "Institut f\u00fcr Theoretische Physik, Universit\u00e4t Leipzig, Br\u00fcderstr. 16, 04103 Leipzig, Germany"
        }
      ], 
      "surname": "Zahn", 
      "given_names": "Jochen", 
      "full_name": "Zahn, Jochen"
    }
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  "titles": [
    {
      "source": "APS", 
      "title": "Semiclassical energy of closed Nambu-Goto strings"
    }
  ], 
  "dois": [
    {
      "value": "10.1103/PhysRevD.100.106005"
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      "journal_volume": "100", 
      "journal_title": "Physical Review D", 
      "material": "article", 
      "journal_issue": "10", 
      "year": 2019
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      "license": "CC-BY-4.0"
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    {
      "statement": "Published by the American Physical Society", 
      "year": "2019"
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  "abstracts": [
    {
      "source": "APS", 
      "value": "We compute semiclassical corrections to the energy of rotating closed Nambu-Goto strings. We confirm the results obtained by means of the Polchinski-Strominger action. We also show that in this semiclassical approximation, the spectrum of physical excitations contains modes that are unphysical nonperturbatively, i.e., to which no physical excitations of the covariantly quantized Nambu-Goto string correspond."
    }
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