Einstein's theory of gravity, General Relativity, is awesome. But strictly speaking it is wrong. We know that because it cannot handle the quantum behavior that particles have. To make quantum theory compatible with General Relativity, we need a theory of quantum gravity. We still don't have one. In this video, I explain what possibilities we have to experimentally test quantum gravity.

I have a summary of the experiment with the graviational field of massive quantum systems here:

http://backreaction.blogspot.c....om/2016/03/researche

The paper is here:

https://iopscience.iop.org/art....icle/10.1088/0264-93

The paper about how to find evidence for quantum gravity in the cosmic microwave background is here:

https://arxiv.org/abs/1510.04038

I have an article here about tests of gravity with further references here:

http://nautil.us/issue/45/powe....r/what-quantum-gravi

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