Date of Degree

2-2014

Document Type

Dissertation

Degree Name

Ph.D.

Program

Physics

Advisor(s)

Janos A. Bergou

Subject Categories

Physics

Abstract

How to discriminate or compare two unitary transformations that are completely unknown?

We first examine the unambiguous discrimination of two unknown unitary transformations; we show that the results are the same as those found for the programmable discrimination of two unknown quantum states.

Next we consider the minimum-error comparison of two unknown unitary transformations; the results are obtained in the general case where the prior probabilities are different.

Last we study the unambiguous discrimination of two unknown unitary transformations in the case where multiple copies of data are available.

Included in

Physics Commons

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