Beginning in mid-February 2008, the 1997-2007 online version of the Science Watch® newsletter, ESI-Topics.com, and in-cites.com, will all be featured together on the redesigned ScienceWatch.com. All previous content from the three sites will be permanently archived, and remain accessible from any existing bookmarks to the archived pages. No new content will be added to this site. Updates and new content (updated biweekly) are available at ScienceWatch.com now.

New Hot Paper Comments

By Thanu Padmanabhan

ESI Special Topics, January 2004
Citing URL - http://www.esi-topics.com/nhp/2004/january-04-ThanuPadmanabhan.html

Thanu Padmanabhan answers a few questions about this month's new hot paper in the field of Physics.


From •>>January 2004

Field: Physics
Article Title: Accelerated expansion of the universe driven by tachyonic matter - art. no. 021301
Authors: Padmanabhan, T
Journal: PHYS REV D
Volume: 6602
Page: 1301-1301
Year: JUL 15 2002
* IUCAA, Pune 411007, Maharashtra, India.
* IUCAA, Pune 411007, Maharashtra, India.

ST:  Why do you think your paper is highly cited?


This paper attempted to provide a theoretical explanation for the origin of this strange form of matter and, if further works vindicates it, we will have a model for most of the matter in the universe.

The paper used a string-theory-inspired model to explain the late-time acceleration of the universe. Since both string theory and accelerating universe are "hot topics," I believe the paper caught the attention of the physics community. High citation often involves more factors than just the quality of the paper, and I suppose this one appeared at the right time!

ST:  Does it describe a new discovery or a new methodology that's useful to others?

Yes. This paper and the follow-up work showed that certain string-inspired models have the potential of explaining both the dark matter and dark energy—which is a novel and useful idea for cosmological model building.

ST:  Could you summarize the significance of your paper in layman's terms?

Cosmological observations suggest that nearly 95% of matter in the universe is "dark" and nearly two-thirds of it is very exotic and exerts negative pressure. This paper attempted to provide a theoretical explanation for the origin of this strange form of matter and, if further works vindicates it, we will have a model for most of the matter in the universe.

ST:  How did you become involved in this research?

As a theoretical physicist and cosmologist, I was interested in the developments in string theory and its implications for cosmology. So this research was very natural and indeed almost routine for a person with my background and expertise.End

Thanu Padmanabhan
Professor & Dean, Core Academic Programmes
Inter-University Center for Astronomy and Astrophysics
Pune, India

ESI Special Topics, January 2004
Citing URL - http://www.esi-topics.com/nhp/2004/january-04-ThanuPadmanabhan.html

•> Search Special Topics
New Hot Papers Menu || All Topics Menu
New Hot Papers Comments Menu
Help || About || Contact

ScienceWatch.com - Tracking Trends and Perfomance in Basic Research
Go to the new ScienceWatch.com

Write to the Webmaster with questions/comments. Terms of Usage.
The Research Services Group of Thomson Scientific |
(c) 2008 The Thomson Corporation.