Quantcast
  • Register
PhysicsOverflow is a next-generation academic platform for physicists and astronomers, including a community peer review system and a postgraduate-level discussion forum analogous to MathOverflow.

Welcome to PhysicsOverflow! PhysicsOverflow is an open platform for community peer review and graduate-level Physics discussion.

Please help promote PhysicsOverflow ads elsewhere if you like it.

News

PO is now at the Physics Department of Bielefeld University!

New printer friendly PO pages!

Migration to Bielefeld University was successful!

Please vote for this year's PhysicsOverflow ads!

Please do help out in categorising submissions. Submit a paper to PhysicsOverflow!

... see more

Tools for paper authors

Submit paper
Claim Paper Authorship

Tools for SE users

Search User
Reclaim SE Account
Request Account Merger
Nativise imported posts
Claim post (deleted users)
Import SE post

Users whose questions have been imported from Physics Stack Exchange, Theoretical Physics Stack Exchange, or any other Stack Exchange site are kindly requested to reclaim their account and not to register as a new user.

Public \(\beta\) tools

Report a bug with a feature
Request a new functionality
404 page design
Send feedback

Attributions

(propose a free ad)

Site Statistics

205 submissions , 163 unreviewed
5,082 questions , 2,232 unanswered
5,353 answers , 22,786 comments
1,470 users with positive rep
820 active unimported users
More ...

  Calculation of the non-Gaussity parameter for primordial cosmological perturbations by the ADM Formalism

+ 2 like - 0 dislike
1182 views

Maldacena has used the ADM Formalism in one of his papers (http://arxiv.org/abs/astro-ph/0210603) in computing the the three point correlation function (i.e the non-Gaussianity) parameter for primordial cosmological perturbations. Can somebody explain in some more detail the relevant parts of the ADM formalism needed to do understand this calculation?

This post imported from StackExchange Physics at 2014-07-28 11:15 (UCT), posted by SE-user Debangshu
asked Apr 13, 2011 in Theoretical Physics by DebangshuMukherjee (165 points) [ no revision ]
Can you be more specific? What are you hoping to find here that you couldn't get by searching Google for "ADM formalism"? As it is, this question is pretty vague.

This post imported from StackExchange Physics at 2014-07-28 11:15 (UCT), posted by SE-user David Z
Question with a huge overlap, if not an exact duplicate physics.stackexchange.com/questions/3445/…

This post imported from StackExchange Physics at 2014-07-28 11:15 (UCT), posted by SE-user dbrane
I mentioned about the paper of Maldacena in my question. (arxiv.org/abs/astro-ph/0210603). I need to know ADM Formalism so that I can understand whatever is said there. A results given by a simple Google search on ADM is not good enough. Either they are not enough (somewhat qualitative) or they are too difficult and assumes a lot.

This post imported from StackExchange Physics at 2014-07-28 11:15 (UCT), posted by SE-user Debangshu
Pretty much any standard advanced GR textbook has a chapter on ADM.

This post imported from StackExchange Physics at 2014-07-28 11:15 (UCT), posted by SE-user Michael Brown
Hi @Debangshu, if you want to understand Maldacena's calculation of these three point correlation functions, you should edit your question (or ask a new one) to primarly ask about this. It might well be that an answerer points you to some relevant reading material about the ADM formalism anyway. Good look ;-).

This post imported from StackExchange Physics at 2014-07-28 11:15 (UCT), posted by SE-user Dilaton

Your answer

Please use answers only to (at least partly) answer questions. To comment, discuss, or ask for clarification, leave a comment instead.
To mask links under text, please type your text, highlight it, and click the "link" button. You can then enter your link URL.
Please consult the FAQ for as to how to format your post.
This is the answer box; if you want to write a comment instead, please use the 'add comment' button.
Live preview (may slow down editor)   Preview
Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
If you are a human please identify the position of the character covered by the symbol $\varnothing$ in the following word:
p$\hbar$ysicsOv$\varnothing$rflow
Then drag the red bullet below over the corresponding character of our banner. When you drop it there, the bullet changes to green (on slow internet connections after a few seconds).
Please complete the anti-spam verification




user contributions licensed under cc by-sa 3.0 with attribution required

Your rights
...