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arXiv · 1502.01016

On single qubit quantum process tomography for trace-preserving and nontrace-preserving maps

Ramesh Bhandari·Nicholas A. Peters
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Abstract

We review single-qubit quantum process tomography for trace-preserving and nontrace-preserving processes, and derive explicit forms of the general constraints for fitting experimental data. These forms provide additional insight into the structure of the process matrix as well as reveal a tighter bound on the trace of a nontrace-preserving process than has been previously stated. We also describe, for completeness, how to incorporate measured imperfect input states.

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Ramesh Bhandari, Nicholas A. Peters. 2015-02-03. On single qubit quantum process tomography for trace-preserving and nontrace-preserving maps. https://arxiv.org/abs/1502.01016

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