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"de Sitter vacua in string
theory," by Shamit Kachru,
Renata Kallosh, Andrei Linde, and Sandip P. Trivedi, Physical Review D,
68(3): 046005, 15 August 2003.
[Authors' affiliations: Stanford University,
CA; TIFR, Mumbai, India]
Abstract:
"We outline the construction of metastable de Sitter vacua of type IIB
string theory. Our starting point is highly warped IIB compactifications with
nontrivial NS and RR three-form fluxes. By incorporating known corrections to
the superpotential from Euclidean D-brane instantons or gaugino condensation,
one can make models with all moduli fixed, yielding a supersymmetric AdS
vacuum. Inclusion of a small number of (D3) over bar -branes
in the resulting warped geometry allows one to uplift the AdS minimum and make
it a metastable de Sitter ground state. The lifetime of our metastable de
Sitter vacua is much greater than the cosmological time scale of 10(10) yr. We
also prove, under certain conditions, that the lifetime of dS space in string
theory will always be shorter than the recurrence time."
This 2003 report from Physical Review D
was cited 39 times in current journal articles indexed by
Thomson Scientific during July-August 2005. Only two other physics papers
published in the last two years, aside from reviews, attracted a greater
number of citations during that two-month period. (Those two papers,
incidentally, are the Astrophysical Journal Supplement Series reports
on the Wilkinson Microwave Anisotropy Probe by, respectively, D.N.
Spergel et al. and
C.
L. Bennett et al.; both have been featured numerous times
since 2004 in this "Hot Paper" slot.) Prior to the most recent
bimonthly count, citations to Kachru et al. have accrued as follows:
May-June 2005: 39 citations
March-April 2005: 20
January-February 2005: 57
November-December 2004: 20
September-October 2004: 18
July-August 2004: 18
May-June 2004: 8
March-April 2004: 9
January-February 2004: 7
November-December 2003: 2
September-October 2003: 2
Total citations to date: 239
SOURCE: Hot
Papers Database (Included with a subscription to the ISI print newsletter Science
Watch®, available from the ISI
Research Services Group. Packaged on a CD-ROM that is mailed with each Science
Watch issue, the Hot
Papers Database contains data on hundreds of highly cited papers published
during the last two years. User interface permits searching by author,
organization, journal, field, and more. Total citations, as well as citations
accrued during successive bimonthly periods, can be assessed and graphed. An
updated CD containing the most recent bimonthly data is mailed with every new
issue of Science
Watch,
six times a year. The CD also includes an electronic version of the Science
Watch
issue in HTML format, for personal desktop access.)
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