Okay so above as Bill S wanted we discussed how and why many QM theorists thinks GR should be bought in under it.
The argument goes we have spent 100 years and countless small fortunes and brilliant minds and none could merge QM in GR. Infact the last great hope Mr Hawkings has officially given up
(
http://www.newscientist.com/blogs/cultur...everything.html)
String theory and SUSY look in deep trouble with LHC findings classicality has a crisis.
So it's time to look seriously at the reverse.
The problem is the QM world is very messy as we discussed above because it really doesn't care for structure which as humans we tend to care very much about.
So enter the half way house we call Quantum Discord (
http://en.wikipedia.org/wiki/Quantum_discord).
The argument goes QM needs no physical structure classic physics wants structure so let them both co-exist simultaneously on top of each other.
This is a very very new interpretation (birtdate 2001) and hence we represent the system as two sets of entropy because that is the big common between the two systems
This half way house is probably the last bastion of our hope for some degree of classical physics to survive if this falls we really are in the deep end with a full QM universe.
So are there any results that support the halfway house model.
Well there are tentative yes results
http://www.physorg.com/news/2011-08-quantum-entanglement.htmlhttp://www.physorg.com/news/2011-08-entanglement-macroscopic-dissipation.htmlFor the more technical of you there is a presentation discussion that might interest you
http://qols.ph.ic.ac.uk/qi_ims/slides/slides_2010_08_10.pdfhttp://www.physics.utoronto.ca/~alqasimi/talks/QES.pdf
http://arxiv.org/ftp/arxiv/papers/1106/1106.5097.pdf
