fine-structure constant
physical constant quantifying the strength of the electromagnetic interaction between elementary charged particles
| rdfs:label |
"fine-structure constant"@en
|
|
skos:alt |
"Sommerfeld fine structure constant"@en
"Sommerfeld's constant"@en
"fine structure constant"@en
|
| schema:description |
"physical constant quantifying the strength of the electromagnetic interaction between elementary charged particles"@en
|
|
schema:date |
"2026-10-05T03:42:02+00:00"^^xsd:dateTime |
| schema:version | 2553285327 |
| wikibase:identifiers | 18 |
| wikibase:sitelinks | 46 |
| wikibase:statements | 42 |
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| wd:statement/Q5997-888620b5-4148-2033-5745-7dabae34f1df | |
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| p:P61 | wd:statement/Q5997-6fed01d9-4222-71e1-dd43-48cc654be16d |
| p:P6104 | wd:statement/Q5997-C4221C42-ECB2-43E3-9B72-A67AA487D3DD |
| p:P6366 | wd:statement/Q5997-940F8A64-B2C8-4C89-86C3-8B9154D6385B |
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| p:P7235 | wd:statement/Q5997-50c761ff-4bad-af3b-7e5e-5a1598d8afa3 |
| wd:statement/Q5997-5402efd7-4c81-2a85-4a36-3f78c1dc8df6 | |
| wd:statement/Q5997-9777d3d9-4a45-e4d7-1b79-ffcab67efe07 | |
| wd:statement/Q5997-a7bf98cf-403c-c379-05d5-7f884af27ec9 | |
| wd:statement/Q5997-db4c6702-4d11-d452-b1c9-300bc1679d2b | |
| wd:statement/Q5997-e257db76-4e9f-d9b2-3eda-36e3cceaa54c | |
| wd:statement/Q5997-ffe9f7b5-4c34-f828-74bd-9e601ab68f46 | |
| p:P7973 | wd:statement/Q5997-378a6bcb-4169-424b-5871-ef1b64ae90b6 |
| p:P7982 | wd:statement/Q5997-266E5478-F6CE-4B7E-81ED-7419C4EEA76D |
| p:P913 | wd:statement/Q5997-1d77fb61-4d4b-b50f-94bf-6f717baf8c6d |
|
p:direct- |
<https:/ |
|
p:direct- |
<http:/ |
|
p:direct- |
<https:/ |
| wdt:P10037 | "costante-di-struttura-fine" |
| wdt:P10283 | "C30539742" |
| wdt:P10376 | "chemistry/fine-structure-constant" |
| wdt:P1181 | 0.0072973525693^^xsd:decimal |
| wdt:P12385 | "constant-destructura-fina" |
| wdt:P1269 | fine structure |
| electromagnetic interaction | |
| wdt:P1296 | "0182081" |
| wdt:P1417 | "science/fine-structure-constant" |
| wdt:P1645 | "alph" |
| wdt:P18 |
<http:/ |
| wdt:P227 | "4824880-0" |
| wdt:P2534 | "<math class="mwe-math-element mwe-math-element-inline" xmlns="http://www.w3.org/1998/Math/MathML"><mrow data-mjx-texclass="ORD"><mstyle displaystyle="true" scriptlevel="0"><mi>α</mi><mo stretchy="false">=</mo><mrow data-mjx-texclass="ORD"><mfrac><mrow data-mjx-texclass="ORD"><mn>1</mn></mrow><mrow data-mjx-texclass="ORD"><mrow data-mjx-texclass="ORD"><mn>4</mn><mi>π</mi><msub><mi>ε</mi><mrow data-mjx-texclass="ORD"><mn>0</mn></mrow></msub></mrow></mrow></mfrac></mrow><mrow data-mjx-texclass="ORD"><mfrac><mrow data-mjx-texclass="ORD"><msup><mi>e</mi><mrow data-mjx-texclass="ORD"><mn>2</mn></mrow></msup></mrow><mrow data-mjx-texclass="ORD"><mrow data-mjx-texclass="ORD"><mi alternate="1">ℏ</mi><mi>c</mi></mrow></mrow></mfrac></mrow><mo stretchy="false">=</mo><mrow data-mjx-texclass="ORD"><mfrac><mrow data-mjx-texclass="ORD"><msub><mi>μ</mi><mrow data-mjx-texclass="ORD"><mn>0</mn></mrow></msub></mrow><mrow data-mjx-texclass="ORD"><mrow data-mjx-texclass="ORD"><mn>4</mn><mi>π</mi></mrow></mrow></mfrac></mrow><mrow data-mjx-texclass="ORD"><mfrac><mrow data-mjx-texclass="ORD"><mrow data-mjx-texclass="ORD"><msup><mi>e</mi><mrow data-mjx-texclass="ORD"><mn>2</mn></mrow></msup><mi>c</mi></mrow></mrow><mrow data-mjx-texclass="ORD"><mi alternate="1">ℏ</mi></mrow></mfrac></mrow><mo stretchy="false">=</mo><mrow data-mjx-texclass="ORD"><mfrac><mrow data-mjx-texclass="ORD"><mrow data-mjx-texclass="ORD"><msub><mi>k</mi><mrow data-mjx-texclass="ORD"><mrow data-mjx-texclass="ORD"><mtext>e</mtext></mrow></mrow></msub><msup><mi>e</mi><mrow data-mjx-texclass="ORD"><mn>2</mn></mrow></msup></mrow></mrow><mrow data-mjx-texclass="ORD"><mrow data-mjx-texclass="ORD"><mi alternate="1">ℏ</mi><mi>c</mi></mrow></mrow></mfrac></mrow><mo stretchy="false">=</mo><mrow data-mjx-texclass="ORD"><mfrac><mrow data-mjx-texclass="ORD"><mrow data-mjx-texclass="ORD"><mi>c</mi><msub><mi>μ</mi><mrow data-mjx-texclass="ORD"><mn>0</mn></mrow></msub></mrow></mrow><mrow data-mjx-texclass="ORD"><mrow data-mjx-texclass="ORD"><mn>2</mn><msub><mi>R</mi><mrow data-mjx-texclass="ORD"><mrow data-mjx-texclass="ORD"><mtext>K</mtext></mrow></mrow></msub></mrow></mrow></mfrac></mrow><mo stretchy="false">=</mo><mrow data-mjx-texclass="ORD"><mfrac><mrow data-mjx-texclass="ORD"><msup><mi>e</mi><mrow data-mjx-texclass="ORD"><mn>2</mn></mrow></msup></mrow><mrow data-mjx-texclass="ORD"><mrow data-mjx-texclass="ORD"><mn>4</mn><mi>π</mi></mrow></mrow></mfrac></mrow><mrow data-mjx-texclass="ORD"><mfrac><mrow data-mjx-texclass="ORD"><msub><mi>Z</mi><mrow data-mjx-texclass="ORD"><mn>0</mn></mrow></msub></mrow><mrow data-mjx-texclass="ORD"><mi alternate="1">ℏ</mi></mrow></mfrac></mrow></mstyle></mrow></math>"^^http://www.w3.org/1998/Math/MathML |
| wdt:P2924 | "4197154" |
| wdt:P31 | coupling constant |
| dimensionless quantity | |
| physical constant | |
| wdt:P3417 | "Fine-Structure-Constant" |
| wdt:P373 | "Fine-structure constant" |
| wdt:P443 |
<http:/ |
| wdt:P4732 | "F02389" |
| wdt:P4746 | "139362" |
| wdt:P4839 | "Entity["PhysicalConstant", "FineStructureConstant"]" |
| wdt:P487 | "α" |
| wdt:P575 | "1918-01-01T00:00:00+00:00"^^xsd:dateTime |
| wdt:P61 | Arnold Sommerfeld |
| wdt:P6104 | WikiProject Mathematics |
| wdt:P6366 | "30539742" |
| wdt:P646 | "/m/0d43v" |
| wdt:P6781 | "Definition:Fine-Structure_Constant" |
| wdt:P7007 | ""FineStructureConstant"" |
| wdt:P7235 | "<math class="mwe-math-element mwe-math-element-inline" xmlns="http://www.w3.org/1998/Math/MathML"><mrow data-mjx-texclass="ORD"><mstyle displaystyle="true" scriptlevel="0"><mi alternate="1">ℏ</mi></mstyle></mrow></math>"^^http://www.w3.org/1998/Math/MathML |
| "<math class="mwe-math-element mwe-math-element-inline" xmlns="http://www.w3.org/1998/Math/MathML"><mrow data-mjx-texclass="ORD"><mstyle displaystyle="true" scriptlevel="0"><mi>α</mi></mstyle></mrow></math>"^^http://www.w3.org/1998/Math/MathML | |
| "<math class="mwe-math-element mwe-math-element-inline" xmlns="http://www.w3.org/1998/Math/MathML"><mrow data-mjx-texclass="ORD"><mstyle displaystyle="true" scriptlevel="0"><mi>π</mi></mstyle></mrow></math>"^^http://www.w3.org/1998/Math/MathML | |
| "<math class="mwe-math-element mwe-math-element-inline" xmlns="http://www.w3.org/1998/Math/MathML"><mrow data-mjx-texclass="ORD"><mstyle displaystyle="true" scriptlevel="0"><mi>c</mi></mstyle></mrow></math>"^^http://www.w3.org/1998/Math/MathML | |
| "<math class="mwe-math-element mwe-math-element-inline" xmlns="http://www.w3.org/1998/Math/MathML"><mrow data-mjx-texclass="ORD"><mstyle displaystyle="true" scriptlevel="0"><mi>e</mi></mstyle></mrow></math>"^^http://www.w3.org/1998/Math/MathML | |
| "<math class="mwe-math-element mwe-math-element-inline" xmlns="http://www.w3.org/1998/Math/MathML"><mrow data-mjx-texclass="ORD"><mstyle displaystyle="true" scriptlevel="0"><msub><mi>ε</mi><mrow data-mjx-texclass="ORD"><mn>0</mn></mrow></msub></mstyle></mrow></math>"^^http://www.w3.org/1998/Math/MathML | |
| "<math class="mwe-math-element mwe-math-element-inline" xmlns="http://www.w3.org/1998/Math/MathML"><mrow data-mjx-texclass="ORD"><mstyle displaystyle="true" scriptlevel="0"><msub><mi>μ</mi><mrow data-mjx-texclass="ORD"><mn>0</mn></mrow></msub></mstyle></mrow></math>"^^http://www.w3.org/1998/Math/MathML | |
| wdt:P7973 | "<math class="mwe-math-element mwe-math-element-inline" xmlns="http://www.w3.org/1998/Math/MathML"><mrow data-mjx-texclass="ORD"><mstyle displaystyle="true" scriptlevel="0"><mi>α</mi></mstyle></mrow></math>"^^http://www.w3.org/1998/Math/MathML |
| wdt:P7982 | "32873" |
| wdt:P913 | Α/α |
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