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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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