Superfluidity, a state of matter in which all of the atoms are in
the same quantum state and can thus move without viscosity, has been
the focus of researchers since its discovery in 1937 by Pyotr Kapitsa,
John Allen, and Don Misener.
The literature in this area for the past decade shows a focus on
superfluidity in Bose-Einstein condensates and helium. Other topics
covered over the past 10 years include superfluidity in atomic trapped
gases, lithium-6, and SR2RUO4; quantum phase transition from a
superfluid to a Mott insulator; and the Infrared Space Observatory
Mission, whose Ritchey-Chretien telescope was maintained by a system
containing superfluid helium.
On our list of highly cited papers pertaining to superfluidity
published in the past two years Bose-Einstein condensates continue to
figure in many of the reports. Other hot topics include Fermi gases
and optical lattices.
Methodology
To construct this database,
papers were extracted based on topic-supplied keywords for Superfluids. The keywords used were as follows:
superfluid*
The baseline time span for this database
is 1995-2005 (first bimonthly, January 1995-February 28, 2005). The resulting database contained
5,163 (10 years)
and 1,373 (2 years) papers; 5,940 authors; 70 countries; 315 journals; and
1,306 institutions.
Rankings
Once the database was in place,
it was used to generate the lists of top 20 papers (two- and ten-year
periods), authors, journals,
institutions, and nations, covering a time span of 1995-2005 (first
bimonthly).
The top 20 papers are ranked
according to total cites. Rankings for author, journal, institution,
and country are listed in three ways: according to total cites, total
papers, and total cites/paper. The paper thresholds and corresponding
percentages used to determine
scientist, institution, country, and journal rankings according to
total cites/paper, and total papers respectively are as follows:
| Entity: |
Scientists |
Institutions |
Countries |
Journals |
| Thresholds: |
20 |
19 |
18 |
26 |
| Percentage: |
1% |
10% |
50% |
10% |
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