%0 Journal Article
%J New Journal of Physics
%D 2015
%T Bounds on quantum communication via Newtonian gravity
%A D. Kafri
%A G. J. Milburn
%A J. M. Taylor
%X Newtonian gravity yields specific observable consequences, the most striking of which is the emergence of a $1/r^2$ force. In so far as communication can arise via such interactions between distant particles, we can ask what would be expected for a theory of gravity that only allows classical communication. Many heuristic suggestions for gravity-induced decoherence have this restriction implicitly or explicitly in their construction. Here we show that communication via a $1/r^2$ force has a minimum noise induced in the system when the communication cannot convey quantum information, in a continuous time analogue to Bell's inequalities. Our derived noise bounds provide tight constraints from current experimental results on any theory of gravity that does not allow quantum communication.
%B New Journal of Physics
%V 17
%P 015006
%8 2015/01/15
%G eng
%U http://arxiv.org/abs/1404.3214v2
%N 1
%! New J. Phys.
%R 10.1088/1367-2630/17/1/015006