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Title: Experimental quantum process tomography of non-trace-preserving maps

Journal Article · · Physical Review. A
;  [1]; ;  [1];  [1]
  1. Dipartimento di Fisica, Sapienza Universita di Roma, I-00185 Roma (Italy)

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 approach for a set of non-trace-preserving maps. We introduce an operator P 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.

OSTI ID:
21450725
Journal Information:
Physical Review. A, Vol. 82, Issue 4; Other Information: DOI: 10.1103/PhysRevA.82.042307; (c) 2010 The American Physical Society; ISSN 1050-2947
Country of Publication:
United States
Language:
English