Casimir effect

en

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Casimir effect

Quality:

Casimir effect - Physical force caused by virtual particles. Article “Casimir effect” in English Wikipedia has 71 points for quality (as of July 1, 2026). The article contains 78 references and 21 sections.

In this language version of Wikipedia the article has the best quality. Also, this article is the most popular in that (English) language version.

In June 2026 the article “Casimir effect” was edited by 2 authors in English Wikipedia and written by 10 authors in all languages.

Since the creation of article “Casimir effect”, its content was written by 419 registered users of English Wikipedia and edited by 1292 registered Wikipedia users in all languages.

The article is cited 347 times in English Wikipedia and cited 1281 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #1297 in December 2001
  • Global: #1387 in December 2001

The highest popularity rank from 2008:

  • Local (English): #4204 in May 2008
  • Global: #6684 in May 2008

There are 32 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2026 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

Languages with the highest quality

#LanguageQuality gradeQuality score
1English (en)
Casimir effect
70.9956
2German (de)
Casimir-Effekt
61.2602
3Korean (ko)
카시미르 효과
42.0703
4Bulgarian (bg)
Ефект на Казимир
40.535
5Turkish (tr)
Casimir kuvveti
35.1295
6French (fr)
Effet Casimir
32.2155
7Catalan (ca)
Efecte Casimir
31.0238
8Russian (ru)
Эффект Казимира
26.8448
9Arabic (ar)
تأثير كازيمير
26.0407
10Chinese (zh)
卡西米爾效應
25.829
More...

The following table shows the most popular language versions of the article.

Most popular in all the time

The most popular language versions of the article "Casimir effect" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Casimir effect
5 054 234
2Russian (ru)
Эффект Казимира
888 453
3German (de)
Casimir-Effekt
681 781
4Spanish (es)
Efecto Casimir
582 557
5French (fr)
Effet Casimir
510 804
6Japanese (ja)
カシミール効果
257 416
7Polish (pl)
Efekt Casimira
234 545
8Italian (it)
Effetto Casimir
233 293
9Portuguese (pt)
Efeito Casimir
212 347
10Chinese (zh)
卡西米爾效應
170 840
More...

The following table shows the language versions of the article with the highest popularity in the last month.

Most popular in June 2026

The most popular language versions of the article "Casimir effect" in June 2026
#LanguagePopularity awardRelative popularity
1English (en)
Casimir effect
13 636
2Russian (ru)
Эффект Казимира
2 767
3Spanish (es)
Efecto Casimir
2 006
4German (de)
Casimir-Effekt
1 819
5French (fr)
Effet Casimir
1 501
6Japanese (ja)
カシミール効果
910
7Chinese (zh)
卡西米爾效應
685
8Polish (pl)
Efekt Casimira
575
9Italian (it)
Effetto Casimir
520
10Portuguese (pt)
Efeito Casimir
353
More...

The following table shows the language versions of the article with the highest Authors’ Interest.

The highest AI

Language versions of the article "Casimir effect" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Casimir effect
419
2German (de)
Casimir-Effekt
149
3French (fr)
Effet Casimir
100
4Italian (it)
Effetto Casimir
84
5Russian (ru)
Эффект Казимира
77
6Dutch (nl)
Casimireffect
51
7Spanish (es)
Efecto Casimir
50
8Portuguese (pt)
Efeito Casimir
34
9Polish (pl)
Efekt Casimira
32
10Czech (cs)
Casimirův jev
30
More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

The highest AI in June 2026

Language versions of the article "Casimir effect" with the highest AI in June 2026
#LanguageAI awardRelative AI
1English (en)
Casimir effect
2
2Esperanto (eo)
Efiko de Casimir
2
3Simple English (simple)
Casimir effect
2
4Arabic (ar)
تأثير كازيمير
1
5Bulgarian (bg)
Ефект на Казимир
1
6Hebrew (he)
אפקט קזימיר
1
7Korean (ko)
카시미르 효과
1
8Belarusian (be)
Эфект Казіміра
0
9Catalan (ca)
Efecte Casimir
0
10Czech (cs)
Casimirův jev
0
More...

The following table shows the language versions of the article with the highest number of citations.

The highest CI

Language versions of the article "Casimir effect" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Casimir effect
347
2Arabic (ar)
تأثير كازيمير
185
3Persian (fa)
اثر کاسیمیر
128
4Italian (it)
Effetto Casimir
81
5Russian (ru)
Эффект Казимира
54
6German (de)
Casimir-Effekt
46
7French (fr)
Effet Casimir
42
8Spanish (es)
Efecto Casimir
38
9Japanese (ja)
カシミール効果
38
10Chinese (zh)
卡西米爾效應
31
More...

Scores

Estimated value for Wikipedia:
English:
Global:
Popularity in June 2026:
English:
Global:
Popularity in all years:
English:
Global:
Authors in June 2026:
English:
Global:
Registered authors in all years:
English:
Global:
Citations:
English:
Global:

Quality measures

Interwikis

#LanguageValue
arArabic
تأثير كازيمير
beBelarusian
Эфект Казіміра
bgBulgarian
Ефект на Казимир
caCatalan
Efecte Casimir
csCzech
Casimirův jev
daDanish
Casimir-effekten
deGerman
Casimir-Effekt
enEnglish
Casimir effect
eoEsperanto
Efiko de Casimir
esSpanish
Efecto Casimir
euBasque
Casimir efektua
faPersian
اثر کاسیمیر
fiFinnish
Casimirin ilmiö
frFrench
Effet Casimir
heHebrew
אפקט קזימיר
huHungarian
Casimir-effektus
hyArmenian
Կազիմիրի էֆեկտ
itItalian
Effetto Casimir
jaJapanese
カシミール効果
koKorean
카시미르 효과
nlDutch
Casimireffect
plPolish
Efekt Casimira
ptPortuguese
Efeito Casimir
roRomanian
Efectul Casimir
ruRussian
Эффект Казимира
simpleSimple English
Casimir effect
skSlovak
Casimirov jav
slSlovenian
Casimirjev pojav
svSwedish
Casimireffekten
trTurkish
Casimir kuvveti
ukUkrainian
Ефект Казимира
zhChinese
卡西米爾效應

Popularity rank trends

Best Rank English:
#4204
05.2008
Global:
#6684
05.2008

AI rank trends

Best Rank English:
#1297
12.2001
Global:
#1387
12.2001

Local popularity rank history

Global popularity rank history

Local AI rank history

Global AI rank history

Languages comparison

Important global interconnections (July 2025 – June 2026)

Wikipedia readers most often find their way to information on Casimir effect from Wikipedia articles about Alcubierre drive, Negative mass, Zero-point energy, Exotic matter and Quantum fluctuation. Whereas reading the article about Casimir effect people most often go to Wikipedia articles on Hendrik Casimir, Van der Waals force, Virtual particle, Zero-point energy and Nucleon.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

News from 1 July 2026

On 1 July 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2026 FIFA World Cup, Kylian Mbappé, Erling Haaland, Democratic Republic of the Congo, FIFA World Cup, Harry Kane, Romelu Lukaku, Senegal, Michael Olise, Sadio Mané.

In English Wikipedia the most popular articles on that day were: 2026 FIFA World Cup, Harry Kane, Julián Quiñones, List of FIFA World Cup top goalscorers, Kylian Mbappé, Democratic Republic of the Congo, Erling Haaland, DR Congo national football team, Melat Kiros, FIFA World Cup.

About WikiRank

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information