Joachim,

These cited papers are not recent, which is the item I emphasized in the question.

The reason why I submitted the question is that all of these groups have been toying with models, and all of them have been preparing experiments to test their models. In all cases the last I've seen from them is at least 2 years old, and I was wondering if anybody knew of further advances. I find all their models interesting but inevitably somewhat speculative, and some of it bears upon what I'm currently involved in. If nothing has been made publicly available, I'd rather as is proper wait out publication than contact them directly.  

Thanks

Thanks Tolga,

my email address is 

[email protected]

I'll be delighted to receive the papers

Very kind regards

Chris

Hi Chris,

Would you be interested in a theory that has our visual system (and so us) as indirect dark matter detectors? The issue being that this would appear to suggest that space-time is a mathematical construct only? I attach a list of presentations and there are articles on my RG page. Non of these  contain any math I am afraid!

Best - J

Dear Chris, I have found that Nima Arkani-Hamed has the latest right idea on spacetime, the Amplituhedron:

https://www.youtube.com/watch?v=-g2186QV4hM

Nima Arkani-Hamed Public Lecture: Quantum Mechanics and Spacetime in the 21st Century, https://www.youtube.com/watch?v=U47kyV4TMnE

http://users.physics.harvard.edu/~barandes/courses/283b/Arkani-Hamed=%20Quantum%20Mechanics%20and%20Spacetime%20(Course%20Notes).pdf