Dirac sea

Dirac sea - ground state of a fermionic field; thought of as a "sea" of negative-energy states that have been all filled in, thus rendering the vaccum stable. Article “Dirac sea” in English Wikipedia has 27.5 points for quality (as of July 1, 2025). The article contains 10 references and 9 sections. The article also contains templates indicating quality issues, therefore its score was reduced by 1.45 points.

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 2025 the article “Dirac sea” was edited by 1 authors in English Wikipedia and written by 7 authors in all languages.

Since the creation of article “Dirac sea”, its content was written by 120 registered users of English Wikipedia and edited by 392 registered Wikipedia users in all languages.

The article is cited 48 times in English Wikipedia and cited 202 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #3134 in October 2003
• Global: #6415 in October 2003

The highest popularity rank from 2008:

• Local (English): #76960 in May 2015
• Global: #68443 in July 2019

There are 19 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, 2025 (including revision history and pageviews for previous years).

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

#	Language	Quality grade	Quality score
1	English (en) Dirac sea		27.4626
2	Latin (la) Mare Diracianum		27.3278
3	Arabic (ar) بحر ديراك		22.0154
4	Korean (ko) 디랙의 바다		20.9948
5	Turkish (tr) Dirac denizi		16.6733
6	Russian (ru) Море Дирака		15.2017
7	Polish (pl) Morze Diraca		14.9086
8	Portuguese (pt) Teoria dos buracos		13.6588
9	Japanese (ja) ディラックの海		10.841
10	Chinese (zh) 狄拉克之海		10.6174

More...

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

The most popular language versions of the article "Dirac sea" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Dirac sea		965 680
2	Japanese (ja) ディラックの海		345 110
3	Russian (ru) Море Дирака		249 784
4	Spanish (es) Mar de Dirac		231 485
5	Chinese (zh) 狄拉克之海		183 824
6	German (de) Dirac-See		167 494
7	Italian (it) Mare di Dirac		115 399
8	Polish (pl) Morze Diraca		53 800
9	French (fr) Mer de Dirac		42 503
10	Portuguese (pt) Teoria dos buracos		37 397

More...

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

The most popular language versions of the article "Dirac sea" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Dirac sea		4 209
2	Russian (ru) Море Дирака		1 725
3	Japanese (ja) ディラックの海		1 325
4	Chinese (zh) 狄拉克之海		685
5	Spanish (es) Mar de Dirac		676
6	Italian (it) Mare di Dirac		483
7	German (de) Dirac-See		271
8	French (fr) Mer de Dirac		191
9	Portuguese (pt) Teoria dos buracos		152
10	Polish (pl) Morze Diraca		122

More...

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

Language versions of the article "Dirac sea" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Dirac sea		120
2	German (de) Dirac-See		46
3	Italian (it) Mare di Dirac		31
4	Russian (ru) Море Дирака		28
5	Dutch (nl) Diraczee		24
6	Hebrew (he) הים של דיראק		21
7	Spanish (es) Mar de Dirac		17
8	Portuguese (pt) Teoria dos buracos		15
9	Chinese (zh) 狄拉克之海		15
10	Polish (pl) Morze Diraca		14

More...

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

Language versions of the article "Dirac sea" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	Korean (ko) 디랙의 바다		3
2	Japanese (ja) ディラックの海		2
3	English (en) Dirac sea		1
4	Italian (it) Mare di Dirac		1
5	Arabic (ar) بحر ديراك		0
6	German (de) Dirac-See		0
7	Spanish (es) Mar de Dirac		0
8	Persian (fa) دریای دیراک		0
9	Finnish (fi) Diracin meri		0
10	French (fr) Mer de Dirac		0

More...

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

Language versions of the article "Dirac sea" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Dirac sea		48
2	German (de) Dirac-See		18
3	Spanish (es) Mar de Dirac		16
4	Japanese (ja) ディラックの海		15
5	Russian (ru) Море Дирака		14
6	Chinese (zh) 狄拉克之海		14
7	Arabic (ar) بحر ديراك		11
8	Italian (it) Mare di Dirac		10
9	French (fr) Mer de Dirac		8
10	Portuguese (pt) Teoria dos buracos		8

More...

#	Language	Value
ar	Arabic بحر ديراك
de	German Dirac-See
en	English Dirac sea
es	Spanish Mar de Dirac
fa	Persian دریای دیراک
fi	Finnish Diracin meri
fr	French Mer de Dirac
he	Hebrew הים של דיראק
it	Italian Mare di Dirac
ja	Japanese ディラックの海
ko	Korean 디랙의 바다
la	Latin Mare Diracianum
nl	Dutch Diraczee
pl	Polish Morze Diraca
pt	Portuguese Teoria dos buracos
ru	Russian Море Дирака
sl	Slovenian Diracovo morje
tr	Turkish Dirac denizi
zh	Chinese 狄拉克之海

Best Rank

English: #76960 05.2015

Global: #68443 07.2019

Best Rank

English: #3134 10.2003

Global: #6415 10.2003

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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 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information