Emergent Gravity Disproved

kdawson writes "A paper up on the ArXiv claims to disprove the gravity-from-entropy theory of Erik Verlinde, which we discussed soon after he introduced the idea in a symposium late in 2009. Archil Kobakhidze says that experiments measuring the effect of gravity on quantum particles (neutrons in this case) match results expected from classical Newtonian gravity, not Verlindian entropic gravity. Here is Kobakhidze's paper (PDF)."

Re:Here we go again

[Freddybear]

For more discussion of Kobakhidze's paper, and for criticism of the paper by Chaichian cited above, go here:
http://motls.blogspot.com/2011/08/once-more-gravity-is-not-entropic-force.html [blogspot.com]

Motl also responds directly to Verlinde here:
http://motls.blogspot.com/2010/01/erik-verlinde-why-gravity-cant-be.html [blogspot.com]
The discussion of a two-slit interference experiment in a gravitational field is clear enough that even I can almost understand it. ;)