241. Twitter updates for 2009-02-08
Uncategorized — By Dmitry Podolsky on February 8, 2009 at 11:59 pm
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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.
- How your brain figures out that God exists: http://twurl.nl/ysq64k
- Drexler on nanosystems: http://tinyurl.com/byeojf
- What if we will run out of gas? a talk by Goodstein (Caltech) in Perimeter Inst.: http://pirsa.org/09020006/
- Which part of the brain the memory is stored in? http://jijr.com/m4M
- Nature Nanotechnology on power of proteins: http://dx.doi.org/10.1038/nnano.2008.422
- Holographic quantum liquid: http://link.aps.org/doi/10.110…..102.051602
- Shorting neurons with nanotubes: http://dx.doi.org/10.1038/nnano.2008.424
- Hydrodynamic object recognition – how sharks notice you, not just by smell
http://link.aps.org/doi/10.110…..102.058104
3 Comments
One very naive question regd. paper “Zero Sound from Holography” (third from bottom twitter update)–
The authors say that in their system, the specific heat goes like T^{2p} at low T in p spatial dimensions. This supposedly is the specific heat contribution from all the low energy modes in the system, whatever they may be. Now, at the same time they find a bosonic mode (zero sound) whose contribution to specific heat should separately be T^{p} , or not?? Then at low T why doesn’t the latter contribution dominate?
Hi Taru,
Density dependent part of specific heat is proportional
, while density independent part – to 
.
Cheers,
Dmitry.
Understood your point on re-reading the paper, thanks!
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