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  "authors": [
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      "affiliations": [
        {
          "country": "Japan", 
          "value": "Center for Gravitational Physics, Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto, 606-8502, Japan", 
          "organization": "Kyoto University"
        }, 
        {
          "country": "Japan", 
          "value": "Division of Liberal Arts, Kogakuin University, 2665-1 Nakano-machi, Hachioji, Tokyo, 192-0015, Japan", 
          "organization": "Kogakuin University"
        }
      ], 
      "surname": "Motohashi", 
      "email": "motohashi@cc.kogakuin.ac.jp", 
      "full_name": "Motohashi, Hayato", 
      "given_names": "Hayato"
    }, 
    {
      "affiliations": [
        {
          "country": "Japan", 
          "value": "Department of Physics, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan", 
          "organization": "Tokyo Institute of Technology"
        }
      ], 
      "surname": "Suyama", 
      "email": "suyama@tap.scphys.kyoto-u.ac.jp", 
      "full_name": "Suyama, Teruaki", 
      "given_names": "Teruaki"
    }
  ], 
  "titles": [
    {
      "source": "Springer", 
      "title": "Quantum Ostrogradsky theorem"
    }
  ], 
  "dois": [
    {
      "value": "10.1007/JHEP09(2020)032"
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  ], 
  "publication_info": [
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      "page_end": "10", 
      "journal_title": "Journal of High Energy Physics", 
      "material": "article", 
      "journal_volume": "2020", 
      "artid": "JHEP09(2020)032", 
      "year": 2020, 
      "page_start": "1", 
      "journal_issue": "9"
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    "method": "Springer", 
    "submission_number": "5299df22464811ebbd0e02163e01809a"
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  "page_nr": [
    10
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  "license": [
    {
      "url": "https://creativecommons.org/licenses//by/4.0", 
      "license": "CC-BY-4.0"
    }
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  "copyright": [
    {
      "holder": "The Author(s)", 
      "year": "2020"
    }
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  "control_number": "56786", 
  "record_creation_date": "2020-09-05T05:30:18.148940", 
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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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      "categories": [
        "hep-th", 
        "gr-qc"
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      "value": "2001.02483"
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  ], 
  "abstracts": [
    {
      "source": "Springer", 
      "value": "The Ostrogradsky theorem states that any classical Lagrangian that contains time derivatives higher than the first order and is nondegenerate with respect to the highest-order derivatives leads to an unbounded Hamiltonian which linearly depends on the canonical momenta. Recently, the original theorem has been generalized to nondegeneracy with respect to non-highest-order derivatives. These theorems have been playing a central role in construction of sensible higher-derivative theories. We explore quantization of such non-degenerate theories, and prove that Hamiltonian is still unbounded at the level of quantum field theory."
    }
  ], 
  "imprints": [
    {
      "date": "2020-09-04", 
      "publisher": "Springer"
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}