167. The return of the phoenix universe
This is a guest blog post by Jean-Luc Lehners from Princeton University. Dmitry. (…)
152. Volume of the Universe after inflation
Back to work after a way too short Xmas break Since we were recently a bit into black hole complementarity and information loss paradox, maybe it is also worth discussing a bit the physics of de Sitter space. (…)
144. For lazy, yet curious students
Suppose you are a cosmologist - a postdoc or an assistant professor. (…)
143. The structure of correlation functions in single-field inflation
This is a guest post by Sarah Shandera from the University of Columbia. Dmitry. (…)
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
1. (…)
134. Cosmic strings - simple and nice introduction into the topic
After my recent post on textures I have been asked what could a newcomer to the field read about topological defects in cosmology apart from the canonical book by Vilenkin and Shellard that I’ve recommended? (…)
131. Non-gaussianities from postinflationary universe
Mark Trodden and Alessandra Silvestri have recently released a paper about signatures of non-gaussianity from the post-inflationary early Universe. (…)
120. Talk in Munich. Regularizing inflaton correlation functions
Let me get again back from confinement to eternal inflation :-), or more precisely, to the infrared behavior of correlation functions of a self-interacting massless scalar field on de Sitter background. (…)
115. Talk in Munich. Leading logs
Last time I have claimed that the leading IR divergences in the loop expansion for the inflaton pair correlation function in theory contribute in the form of expansion
. (…)
112. Talk in Munich. Other two interesting infrared scales
As Instanton figured out in comments to the previous post, the scale is related to the self-reproduction scale. How to show this? (…)
111. Talk in Munich. One interesting infrared scale in inflationary cosmology
I am back to Helsinki, was not this visit really short? :-)
For those of you how were unable to come to the Sommerfeld Center in Munich to hear my talk and for those of you who were there but did not understand it ? (…)
96. Quintessence with w less than -1
In another very interesting recent paper on quintessence the Italian Team (Creminelli, D’Amico, Norena, Vernizzi - and warmest regards from Helsinki if you read it, Filippo :-)) is trying to construct an reliable example of QFT that behaves like the quintessence with ?ghost-like? (…)
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