Cosmological perturbations and large scale structure
Susskind’s lectures on cosmology
Another amazing set of 8 lectures by Lenny Susskind – cosmology this time. Thanks for sharing this, Stanford!
P.S. If you were unable to see embedded video, here is the link to the playlist I’ve created for you.
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Rocky Kolb’s lecture on Dark Universe
… namely, about dark matter and dark energy as you may imagine. The lecture itself (2009 Buhl lecture at Carnegie Mellon U) is actually very clear and suitable for newcomers/non-scientists. So, if you want to know in some details (more or less technical) what the modern cosmology is all about, please check out this lecture.
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Vorticity generation in cosmological perturbation theory
Adam Christopherson is a PhD student at Queen Mary, U. of London working with Karim Malik on cosmological perturbation theory. Dmitry.
In this blog post, I will summarize recent work on vorticity generation in cosmological perturbation theory, undertaken by Karim Malik, David Matravers and myself. The main result of the paper this is based on, arxiv:0904.0940, is that at second order in perturbation theory, vorticity generation is sourced by entropy gradients.
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295. Weak lensing signal in Unified Dark Matter models
This is a guest post by Stefano Camera (INFN and U. of Torino) about the work he has done in collaboration with D. Bertacca, A. Diaferio, N. Bartolo and S. Matarrese. Dmitry.
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293. Power counting semi-classical inflation models and Higgs-Inflation
This is a guest post by Michael Trott from Perimeter Institute. Dmitry.
Thanks Dmitry for offering me the chance to explain the results of a recent paper (arXiv:0902.4465) by Cliff Burgess, Hyun Min Lee and myself.
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286. Nambu-Goldstone dark matter
This is a guest post by Yu Nakayama from the University of California, Berkeley. Dmitry.
First of all, I’d like thank Dmitry for giving me this opportunity to post a guest blog on our hottest paper about Nambu-Goldstone Dark Matter (arXiv:0902.2914). This is based on the collaboration with M. Ibe, H. Murayama, and T.T Yanagida. You know, last year Nambu got his Nobel prize for his discovery of the spontaneous breaking of the global symmetry and associated massless scalar fields (Nambu-Goldstone boson). The main idea of our paper is to use this Nambu-Goldstone boson as a candidate for dark matter, in the context of the supersymmetric extension of the standard model.
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270. Cosmological fluctuations from IR cascading during inflation
This is a guest blog post by Neil Barnaby who is working in the Lev Kofman’s group at CITA, the very same I worked 3 years ago. Dmitry.
First off, I want to thank Dmitry for inviting me to write about my recent paper, arXiv:0902.0615. This work was done in collaboration with Zhiqi Huang, Lev Kofman and Dmitry Pogosian. (In case your insomnia is incurable, my website is here.) The abstract is below.
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242. Video of the day: George Smoot on design of the Universe
George Smoot, Nobel Prize 2006 winner, was invited to give a 20-minute talk on cosmology at TED.
Thanks to @kusior.
239. Susskind’s lectures on general relativity
A most natural generalization of the lectures posted yesterday and on Friday 
214. Video of the day: triumphs and challenges for modern cosmology
This is a lecture given by J. Peebles at UC Berkeley, very clear and fun to listen. The video is a bit too dark, though, so you will probably want to turn off the light.
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196. Video of the day: How big is the Universe?
194. Another quantum flapdoodle video: BBC on bubble universe
Even features Nima Arkani-Hamed and Lisa Randall
192. Video of the day: Michio Kaku on Multiverse
What I really wonder – is it actually a trend that actively working physicists figure out how important nowadays is publicity, they commit themselves to getting more publicity and then suddenly, when they finally get their publicity, they are not actively working physicists anymore? Is a human too much of a social creature? Is too much socializing able to kill “the pleasure of figuring things out”?
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144. For lazy, yet curious students
Suppose you are a cosmologist – a postdoc or an assistant professor. A student just knocked your door – he has heard that cosmology (inflation, non-gaussianities, dark energy and dark matter) is a cool subject right now. He is also aware of the fact that you are famous (well, not too much, but that he does to know yet, he-he) young professor. The student wants to be sure that cosmology is indeed the thing worth spending time for. (Well, maybe spending his whole life!)
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140. First two weeks of December at NEQNET
Dear friends
Before I proceed to the (becoming usual already) list of posts published at NEQNET during the last two weeks, let me say a couple of words about the blog itself, which is currently the source of my pride 
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