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Wigner's friend

thought experiment in theoretical quantum physics
Event thought_experiment Q901057
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Wigner's friend

Summary

Wigner's friend is a thought experiment[1]. It draws 278 Wikipedia views per month (thought_experiment category, ranking #22 of 56).[2]

Key Facts

  • Wigner's friend is the creator of Eugene Wigner[3].
  • Wigner's friend's instance of is recorded as thought experiment[4].
  • Eugene Wigner is named after Wigner's friend[5].
  • Wigner's friend's based on is recorded as Schrödinger's cat[6].
  • Wigner's friend's Freebase ID is recorded as /m/0jcrw[7].
  • Wigner's friend's Microsoft Academic ID is recorded as 2780718503[8].
  • Wigner's friend's Namuwiki ID is recorded as 위그너의 친구[9].

Body

Works and Contributions

Wigner's friend is the creator of Eugene Wigner[3].

Why It Matters

Wigner's friend draws 278 Wikipedia views per month (thought_experiment category, ranking #22 of 56).[2] It has Wikipedia articles in 14 language editions, a strong signal of global cultural recognition.[10]

Related Entities

Eugene Wigner

References

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

Direct Wikidata claims

  1. [4] ↑ . wikidata.org.
  2. [5] ↑ . wikidata.org.
  3. [6] ↑ . wikidata.org.
  4. [3] ↑ . wikidata.org.
  5. [7] ↑ . Freebase Data Dumps. wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [10] ↑ . Wikidata sitelinks. 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). Wigner's friend. Retrieved May 3, 2026, from https://4ort.xyz/entity/wigner-s-friend
MLA “Wigner's friend.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/wigner-s-friend.
BibTeX @misc{4ortxyz_wigner-s-friend_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Wigner's friend}}, year = {2026}, url = {https://4ort.xyz/entity/wigner-s-friend}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Wigner's friend — https://4ort.xyz/entity/wigner-s-friend (retrieved 2026-05-03)

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