Geometric Discord in Non-Inertial Frames

Playing this video requires the latest flash player from Adobe.

Download link (right click and 'save-as') for playing in VLC or other compatible player.

Recording Details

PIRSA Number: 


I review the recent work performed on computing the geometric
discord in non-inertial frames. We consider the well-known case of an
inertially maximally entangled state shared by inertial Alice and non-inertial
Robb. It is found that for high accelerations the geometric discord decays to a
negligible amount; this is in stark contrast to the entropic definition of
quantum discord which asymptotes to a finite value in the same limit. Such a
result has two different implications: the first being that usable quantum
correlations are more limited in this regime than previously thought and the
second being that geometric discord may not be a sufficient measure of quantum
correlations. I will discuss both of these perspectives.