241. Twitter updates for 2009-02-08
Save This Post as PDF- 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
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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!