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Dark energy - Padmanabhan

by Kea
Tags: dark, energy, padmanabhan
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Kea
#1
Mar7-06, 06:14 PM
P: 859
Dark energy: Mystery of the Millenium
T. Padmanabhan
http://arxiv.org/abs/astro-ph/0603114

This is an impressive paper, based on a talk and quite readable.
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Chronos
#2
Mar8-06, 01:53 AM
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Indeed, Kea. I read that one yesterday. Padmanabhan has a way with words.
selfAdjoint
#3
Mar8-06, 02:38 PM
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I just finished reading it. What a lot of good solid MEAT in that paper. Obviously based on decades of deep thought by himself and semingly everybody else, it really does give us a general NECESSARY framework for evaluating quantum gravity programs.

Kea
#4
Mar8-06, 02:52 PM
P: 859
Dark energy - Padmanabhan

Quote Quote by selfAdjoint
...it really does give us a general NECESSARY framework for evaluating quantum gravity programs.
Yes, I thought so too. I must put some time aside to go through some of his papers.
selfAdjoint
#5
Mar8-06, 08:44 PM
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P: 8,147
Quote Quote by Kea
Yes, I thought so too. I must put some time aside to go through some of his papers.

He's got his references nicely organized by topic, I noticed. I liked the way he synthesized holography, thermodynamics, and special viewpoints to get his "model that works". Very convincing.

I was especially diverted by his choice of variables for the action: the metric, the Christoffel symbols, and the curvature tensor. Noting also that the curvature tensor, in this representstion, depends on the Christoffel symbols but not the metric. I wonder how many decades of pondering the common wisdom of GR it took to come up with that!
Chronos
#6
Mar9-06, 01:28 AM
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Quote Quote by Kea
Yes, I thought so too. I must put some time aside to go through some of his papers.
What I really like is his ability reach a broad audience. Modern theorists tend to target a very narrow audience possessing great expertise in the subject material. This is not necessarily a bad thing. It's an efficient way to publish new research. Unfortunately, it leaves most of the rest of us slack-jawed. Here are some of his other papers I like:

http://www.arxiv.org/abs/astro-ph/0602280
Issues in the Philosophy of Cosmology

http://www.arxiv.org/abs/astro-ph/0602117
Advanced Topics in Cosmology: A Pedagogical Introduction

http://www.arxiv.org/abs/astro-ph/0510492 :
Darker Side of the Universe

http://www.arxiv.org/abs/gr-qc/0510015
A new perspective on Gravity and the dynamics of Spacetime

http://www.arxiv.org/abs/gr-qc/0503107
Understanding Our Universe: Current Status and Open Issues


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