"Page curve" meaning in English

{
  "etymology_text": "From being a curve on a graph derived by physicist Don Page.",
  "forms": [
    {
      "form": "Page curves",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Page curve (plural Page curves)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The predicted path of the evolution of the von Neumann entropy of a black hole undergoing Hawking radiation through its lifetime, where the Hawking radiation radiates away the quantum information stored within the black hole, to avoid violating the Law of Conservation of Quantum Information."
      ],
      "id": "en-Page_curve-en-noun-8Q80MkP9",
      "links": [
        [
          "von Neumann entropy",
          "von Neumann entropy#English"
        ],
        [
          "black hole",
          "black hole#English"
        ],
        [
          "Hawking radiation",
          "Hawking radiation#English"
        ]
      ]
    }
  ],
  "word": "Page curve"
}

{
  "etymology_text": "From being a curve on a graph derived by physicist Don Page.",
  "forms": [
    {
      "form": "Page curves",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Page curve (plural Page curves)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns"
      ],
      "glosses": [
        "The predicted path of the evolution of the von Neumann entropy of a black hole undergoing Hawking radiation through its lifetime, where the Hawking radiation radiates away the quantum information stored within the black hole, to avoid violating the Law of Conservation of Quantum Information."
      ],
      "links": [
        [
          "von Neumann entropy",
          "von Neumann entropy#English"
        ],
        [
          "black hole",
          "black hole#English"
        ],
        [
          "Hawking radiation",
          "Hawking radiation#English"
        ]
      ]
    }
  ],
  "word": "Page curve"
}