Journal club
94. Quantum scale invariance on the lattice
Arguably, the most interesting paper in archives today is the one by M. Shaposhnikov and I. Tkachev. (…)
92. A new theory of galaxy formation needed
It is well known that an ordinary galaxy can be described by seven physical parameters: total mass, baryon fraction, age, specific angular momentum, specific heat energy (related to random motion within the galaxy), its radius and concentration. (…)
90. Unidentified extended sources of gamma ray emission
Here is another open problem in astrophysics :-), as far as I understand…
The H.E.S.S. system of telescopes in Namibia is among most successful instruments of its kind. (…)
89. First week of November on NEQNET
Below is the list of what I wrote on this blog during the first week of November… not bad actually, it looks like with Agata’s birth I have become more productive, not less… Surprising
In the mean time, the number of subsribers to this blog has hit the magic number 100 (and peaked at 108 :-)) Thanks for subscribing, new readers, you are very much welcome! (…)
88. Belavin and Zamolodchikov on 2D quantum gravity
Both people are among inventors of conformal field theory, string theory and the chapter of field theory that is called “integrable systems” nowadays, so naturally, one cannot help taking an hour of her time and learn what each of them has new to say. (…)
87. Leptophilic dark matter
Recall the tempest in the physics blogosphere during the last two weeks - I mean, the one due to the CDF anomaly? (…)
85. Hard thermal loops: what is it?
Suppose that you are a person studying non-equilibrium diagrammatic methods. (…)
83. Quintessence on the string theory landscape?
Nemanja Kaloper and Lorenzo Sorbo have recently released a paper explaining how the quintessence can be realized on string theory landscape. What is quintessence and why the question is important? (…)
81. Edward Witten’s talk on 3D gravity
Fascinating video of Edward Witten’s talk on 3D quantum gravity given at the Princeton Institute for Advanced Study.The picture that goes back to Deser, ‘t Hooft and Jackiw is the following. (…)
80. Watching worlds collide: bubbles, bubbles, bubbles
Getting tired of malicious attacks by anti-landscapists, Spencer Chang, Matt Kleban and Thomas Levi released a paper about one observable effect on string theory landscape. (…)
78. A talk on scalar QFT, exact renormalization group and RG fixed points
Oliver Rosten who, as I gather, now works in the U. of Sussex with Daniel Litim, recently gave a talk on exact renormalization group in Perimeter. (…)
76. Chaos in quantum field theory
Clearly, the topic of interplay between confinement and chaos in classical YM got some interest, so let me continue. (…)
75. Chaos in YM and confinement
I think we are currently having a somewhat fruitful discussion with Marco Frasca on his blog. (…)
73. How eukaryotic cells feel direction
Eukaryotic cells present in both plants and animals are cells bounded by membranes and containing nuclei. (…)
71. More talks: M2 branes and AdS/CFT, correlations of low multipoles in CMB
Here is another couple of recent talk at Perimeter Institute worth if not watching, but at least going through the presentation file:
1. (…)
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