Mutually unbiased bases in low dimensions

The density matrix of a qudit may be reconstructed with optimal efficiency if the expectation values of a specific set of observables are known. The required observables only exist if it is possible to identify d mutually unbiased (MU) complex (d×d) Hadamard matrices, defining a complete set of d+1...

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Bibliographic Details
Main Author: Brierley, Stephen
Other Authors: Weigert, S.
Published: University of York 2009
Subjects:
510
Online Access:http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.516399