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Posts by Dmitry Podolsky

Dmitry Podolsky has got his PhD from Landau Institute for Theoretical Physics. He currently works as postdoc at Case Western Reserve University. He is also one of the editors of NEQNET.

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. As we remember, when people talk about dynamics of eternal inflation on the string theory landscape (see for example my own paper and references therein), they keep in mind the [...]

November 7, 2008 ASTRO, HEP-TH/PH 0 Comments

79. Obama is a president. What is there for us in it?

The people of the United States have not failed. In their need they have registered a mandate that they want direct, vigorous action. They have asked for discipline and direction under leadership. They have made me the present instrument of their wishes. In the spirit of the gift I will take it. Franklin Delano Roosevelt, [...]

November 7, 2008 Uncategorized 12 Comments

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. The main conclusion is that there are non non-trivial RG fixed points for a scalar QFT in D=4 (that is, no fixed points except the gaussian one corresponding to [...]

November 5, 2008 HEP-TH/PH 0 Comments

77. 99 subsribers to RSS feed

Hi friends Currently, there are 99 subscribers to my feed at FeedBurner, see the counter in the footer! Are you by a chance reading this blog but not yet subscribed? Please be my friend (and the subscriber number 100!) and make me happy for the end of the day You could either subscribe to the [...]

November 4, 2008 Uncategorized 4 Comments

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. Contrary to what the title says, I shall not mention “confinement” this time, focusing on “chaos” instead. Our debate got heated up quite a bit in the comments to the last post Marco is explaining on [...]

November 4, 2008 APPLIED, HEP-TH/PH 0 Comments

75. Chaos in YM and confinement

I think we are currently having a somewhat fruitful discussion with Marco Frasca on his blog. The question is how relevant is chaotic behavior of classical solutions of Yang-Mills equations of motion for the quantum theory (or, more precisely, for YM at strong coupling). Marco argues that it is absolutely irrelevant, and strong couping behavior [...]

November 3, 2008 APPLIED, HEP-TH/PH 15 Comments

74. Nima and CDF anomaly

The post is deleted.

November 3, 2008 ASTRO, HEP-TH/PH 4 Comments

73. How eukaryotic cells feel direction

Eukaryotic cells present in both plants and animals are cells bounded by membranes and containing nuclei. Often they contain other organelles such as mitochondria or chloroplasts, but this is not what will interest us at this time – let us focus on membranes. Properties of these membranes are rather peculiar:  they actually represent a nice [...]

November 2, 2008 APPLIED, ASTRO, HEP-TH/PH 0 Comments

72. Publishers and monkeys

James Kotsybar was kind enough to send me another poem of his, which, I think, will be fun to reproduce here… All I can conclude from it is that nowadays it is much harder to get published for a poet that for a physicist MONKEYS SHINED – James Ph.Kotsybar The keyboard monkeys, ad infinitum, may [...]

November 2, 2008 Uncategorized 2 Comments

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. Igor Klebanov from Princeton discusses M2 branes and AdS/CFT correspondence. M2 branes are very hot topic in string theory now (see the review of membrane minirevolution on the Lubos Motl’s blog). Let [...]

November 2, 2008 ASTRO, COND-MAT, HEP-TH/PH 2 Comments
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  • Micro: Can 2 question provide a common solution? Black holes, information loss paradox and Ultra high energy cosmic rays. ...
  • James Ph. Kotsybar: SAGITTARIUS A* -- James Ph. Kotsybar Mysteriously cloaked, obscure despite Interior illuminating glare, Long ...
  • cad: The presentation can be found in several formats at http://pirsa.org/08110051/...
  • James Ph. Kotsybar: COMMENTS FOR THIS ENTRY ARE CLOSED -- James Ph. Kotsybar When the general public hears about A breakthrough in...
  • James Ph. Kotsybar: FEARFUL SYMMETRY (from Songs Of Experiments) -- James Ph. Kotsybar Beyond notice, out of sight in dimensions c...
  • James Ph. Kotsybar: OFF THE SCALE -- James Ph. Kotsybar The young lady known simply as Bright, who could travel at speeds f...
  • James Ph. Kotsybar: COSMIC PREDICTION -- James Ph. Kotsybar Betelgeuse is gonna blow! It?s just a matter of time It?s only ten...
  • Leo: Ok I have a question: if a black hole is supermassive, say 100 billion solar mass, let's suppose Alice fells int...
  • James Ph. Kotsybar: HIGHER DIMENSIONS -- James Ph. Kotsybar From point to line to plane to sphere there?s only three dimensi...
  • superkuh: I am glad you are back! No more disapointing weekly refreshings of that monkey....
  • Dmitry: Thank you James, beautiful and inspiring as usual :)...
  • Dmitry: Yes, renormalization group should still be applicable, but crit. exponents have to be different. By the way, if we ...
  • James Ph. Kotsybar: UNIQUE PARAMETERS -- James Ph. Kotsybar There is only one answer to creation. Though we don?t nearly understan...
  • Ariel Amir: Very interesting, thanks. It indeed seems to be very close to what we discuss here. I wonder whether the distributi...
  • Dmitry: Hi Ariel, thanks for the explanation! Let me now discuss a bit the application I had in mind. It has to do w...
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