Experimental quantum process tomography of non trace-preserving maps

Details Experimental quantum process tomography of non trace-preserving maps Experimental quantum process tomography of non trace-preserving maps

2010-08-31

arxiv.org/abs/1008.5334v1

Phys. Rev. A 82, 042307 (2010)

Physics

Quantum Physics

6 pages, 7 figures, revtex

Scientific paper

10.1103/PhysRevA.82.042307

The ability of fully reconstructing quantum maps is a fundamental task of quantum information, in particular when coupling with the environment and experimental imperfections of devices are taken into account. In this context we carry out a quantum process tomography (QPT) approach for a set of non trace-preserving maps. We introduce an operator $\OO$ to characterize the state dependent probability of success for the process under investigation. We also evaluate the result of approximating the process with a trace-preserving one.

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