Unruh effect

prediction that an accelerating observer will observe blackbody radiation where an inertial observer would observe none
Thing physical_law Q1568269
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Unruh effect

Summary

Unruh effect is a physical law[1]. It draws 402 Wikipedia views per month (physical_law category, ranking #30 of 113).[2]

Key Facts

  • Unruh effect's instance of is recorded as physical law[3].
  • W. G. Unruh is named after Unruh effect[4].
  • Unruh effect's GND ID is recorded as 4643880-4[5].
  • Unruh effect's Freebase ID is recorded as /m/0335kx[6].
  • Unruh effect's Stack Exchange tag is recorded as https://physics.stackexchange.com/tags/unruh-effect[7].
  • Unruh effect's defining formula is recorded as T=\frac{\hbar a}{2\pi ck_{\mathrm B}}[8].
  • Unruh effect's studied by is recorded as thermodynamics[9].
  • Unruh effect's Great Norwegian Encyclopedia ID is recorded as Unruh-effekt[10].
  • Unruh effect's Wolfram Language entity code is recorded as Entity["PhysicalEffect", "UnruhEffect"][11].
  • Unruh effect's maintained by WikiProject is recorded as WikiProject Mathematics[12].
  • Unruh effect's Microsoft Academic ID is recorded as 88018779[13].
  • Unruh effect's in defining formula is recorded as T[14].
  • Unruh effect's in defining formula is recorded as \hbar[15].
  • Unruh effect's in defining formula is recorded as a[16].
  • Unruh effect's in defining formula is recorded as c[17].
  • Unruh effect's in defining formula is recorded as k_{\mathrm B}[18].
  • Unruh effect's Scholarpedia article ID is recorded as unruh[19].
  • Unruh effect's OpenAlex ID is recorded as C88018779[20].
  • Unruh effect's Encyclopedia of China is recorded as 59660[21].

Why It Matters

Unruh effect draws 402 Wikipedia views per month (physical_law category, ranking #30 of 113).[2] It has Wikipedia articles in 16 language editions, a strong signal of global cultural recognition.[22] It is known by 8 alternative names across languages and contexts.[23]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] . wikidata.org.
  2. [4] . wikidata.org.
  3. [5] . Integrated Authority File. Retrieved . wikidata.org.
  4. [6] . Freebase Data Dumps. wikidata.org.
  5. [7] . wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . wikidata.org.
  15. [17] . wikidata.org.
  16. [18] . wikidata.org.
  17. [19] . wikidata.org.
  18. [20] . OpenAlex. Retrieved . docs.openalex.org. Provenance: wikidata.org.
  19. [21] . wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [22] . Wikidata sitelinks. wikidata.org.
  3. [23] . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Unruh effect. Retrieved May 3, 2026, from https://4ort.xyz/entity/unruh-effect
MLA “Unruh effect.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/unruh-effect.
BibTeX @misc{4ortxyz_unruh-effect_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Unruh effect}}, year = {2026}, url = {https://4ort.xyz/entity/unruh-effect}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Unruh effect — https://4ort.xyz/entity/unruh-effect (retrieved 2026-05-03)

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