Speaker
Jamie Sikora
(Virginia Tech)
Description
Identifying quantum states is one of the oldest problems in quantum information theory. In this work, we explore a variation of this task: rather than determining which state a system is in, we seek to identify a state that it is not. A set of quantum states is said to be antidistinguishable if this inverse guessing game can be won with certainty. We establish tight bounds characterizing when a set of pure states must be antidistinguishable, as well as when it is impossible.
This is joint work with Vincent Russo, Nathaniel Johnston, and Benjamin Lovitz.
Author
Jamie Sikora
(Virginia Tech)