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SUMMARY:On the discrimination of quantum measurements  - Aleksandra Krawie
 c\, Institute of Theoretical and Applied Informatics\, Polish Academy of S
 ciences
DTSTART:20220609T131500Z
DTEND:20220609T141500Z
UID:TALK174980@talks.cam.ac.uk
CONTACT:Damian Pitalua-Garcia
DESCRIPTION:When can we distinguish quantum measurements perfectly after o
 nly a finite number of queries? How to calculate the diamond norm distance
  between von Neumann measurements? During the seminar\, I will present res
 ults on the discrimination of measurements with rank-one effects. I will f
 ocus on the discrimination of von Neumann measurements and SIC POVMs. I wi
 ll elaborate on three approaches to the discrimination problem\, which are
 : symmetric\, unambiguous\, and asymmetric discrimination. All of these ap
 proaches will be considered in the single-shot and multiple-shot scenarios
 . I will consider both the parallel and adaptive schemes of discrimination
  assuming that we can use the discriminated channel a finite number of tim
 es. I will provide formulas for the optimal probability of correct discrim
 ination and indicate when the adaptive scheme is essential for perfect dis
 crimination.
LOCATION:MR2 Centre for Mathematical Sciences
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