"Clebsch-Gordan coefficient" meaning in English

{
  "etymology_text": "Named after the German mathematicians Alfred Clebsch and Paul Gordan, who encountered an equivalent problem in invariant theory.",
  "forms": [
    {
      "form": "Clebsch-Gordan coefficients",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "Clebsch-Gordan coefficient"
      },
      "expansion": "Clebsch-Gordan coefficient (plural Clebsch-Gordan coefficients)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
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          "langcode": "en",
          "name": "Physics",
          "orig": "en:Physics",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Any of a class of numbers that arise in angular momentum coupling in quantum mechanics. They appear as the expansion coefficients of total angular momentum eigenstates in an uncoupled tensor product basis."
      ],
      "id": "en-Clebsch-Gordan_coefficient-en-noun-pnpRreLj",
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "number",
          "number"
        ],
        [
          "angular momentum",
          "angular momentum"
        ],
        [
          "coupling",
          "coupling"
        ],
        [
          "quantum mechanics",
          "quantum mechanics"
        ],
        [
          "expansion",
          "expansion"
        ],
        [
          "coefficient",
          "coefficient"
        ],
        [
          "eigenstate",
          "eigenstate"
        ],
        [
          "uncoupled",
          "uncoupled"
        ],
        [
          "tensor product",
          "tensor product"
        ],
        [
          "basis",
          "basis"
        ]
      ],
      "raw_glosses": [
        "(physics) Any of a class of numbers that arise in angular momentum coupling in quantum mechanics. They appear as the expansion coefficients of total angular momentum eigenstates in an uncoupled tensor product basis."
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ]
    }
  ],
  "word": "Clebsch-Gordan coefficient"
}

{
  "etymology_text": "Named after the German mathematicians Alfred Clebsch and Paul Gordan, who encountered an equivalent problem in invariant theory.",
  "forms": [
    {
      "form": "Clebsch-Gordan coefficients",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "Clebsch-Gordan coefficient"
      },
      "expansion": "Clebsch-Gordan coefficient (plural Clebsch-Gordan coefficients)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
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        "English multiword terms",
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        "Pages with entries",
        "en:Physics"
      ],
      "glosses": [
        "Any of a class of numbers that arise in angular momentum coupling in quantum mechanics. They appear as the expansion coefficients of total angular momentum eigenstates in an uncoupled tensor product basis."
      ],
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "number",
          "number"
        ],
        [
          "angular momentum",
          "angular momentum"
        ],
        [
          "coupling",
          "coupling"
        ],
        [
          "quantum mechanics",
          "quantum mechanics"
        ],
        [
          "expansion",
          "expansion"
        ],
        [
          "coefficient",
          "coefficient"
        ],
        [
          "eigenstate",
          "eigenstate"
        ],
        [
          "uncoupled",
          "uncoupled"
        ],
        [
          "tensor product",
          "tensor product"
        ],
        [
          "basis",
          "basis"
        ]
      ],
      "raw_glosses": [
        "(physics) Any of a class of numbers that arise in angular momentum coupling in quantum mechanics. They appear as the expansion coefficients of total angular momentum eigenstates in an uncoupled tensor product basis."
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ]
    }
  ],
  "word": "Clebsch-Gordan coefficient"
}