Geometric Discord in Non-Inertial Frames



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Recording Details

Speaker(s): 
PIRSA Number: 
12060058

Abstract

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.