Andersson, E. and Oi, Daniel K.L. (2008) Binary search trees for generalized measurements. Physical Review A, 77 (5). 052104. ISSN 1094-1622Full text not available in this repository. (Request a copy from the Strathclyde author)
Generalized quantum measurements (positive operator valued measures or probability operator measures) are important for optimally extracting information for quantum communication and computation. The standard realization via the Neumark extension requires extensive resources in the form of operations in an extended Hilbert space. For an arbitrary measurement, we show how to construct a binary search tree with a depth logarithmic in the number of possible outcomes. This could be implemented experimentally by coupling the measured quantum system to a probe qubit which is measured, and then iterating.
|Keywords:||generalized quantum measurement, positive operator valued measure, probability operator measure, quantum communication, binary search tree, Physics, Atomic and Molecular Physics, and Optics|
|Subjects:||Science > Physics|
|Department:||Faculty of Science > Physics|
|Depositing user:||Strathprints Administrator|
|Date Deposited:||27 May 2010 15:21|
|Last modified:||27 Apr 2016 14:49|