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@article{806323, author = {Ziman, Mário}, article_number = {3}, keywords = {Quantum process tomography; principle of maximal entropy}, language = {eng}, issn = {1050-2947}, journal = {Physical Review A}, title = {Incomplete quantum process tomography and principle of maximal entropy}, url = {http://arxiv.org/abs/0802.3892}, volume = {78}, year = {2008} }
TY - JOUR ID - 806323 AU - Ziman, Mário PY - 2008 TI - Incomplete quantum process tomography and principle of maximal entropy JF - Physical Review A VL - 78 IS - 3 SP - 032118 EP - 032118 SN - 10502947 KW - Quantum process tomography KW - principle of maximal entropy UR - http://arxiv.org/abs/0802.3892 N2 - The main goal of this paper is to extend and apply the principle of maximum entropy (MaxEnt) to incomplete quantum process estimation tasks. We will define a socalled process entropy function being the von Neumann entropy of the state associated with the quantum process via Choi Jamiolkowski isomorphism. It will be shown that an arbitrary process estimation experiment can be reformulated in a unified framework and MaxEnt principle can be consistently exploited. We will argue that the suggested choice for the process entropy satisfies natural list of properties and it reduces to the state MaxEnt principle, if applied to preparator devices. ER -
ZIMAN, Mário. Incomplete quantum process tomography and principle of maximal entropy. \textit{Physical Review A}. 2008, roč.~78, č.~3, s.~032118-32125. ISSN~1050-2947.
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