| ZIMAN, Mário a Vladimír BUŽEK. Realization of positive-operator-valued measures using measurement-assisted programmable quantum processors. Physical Review A. New York: American Physical Society, 2005, Vol. 72, No. 2, s. A022343, 7 s. ISSN 1050-2947. |
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@article{608125,
author = {Ziman, Mário and Bužek, Vladimír},
article_location = {New York},
article_number = {No. 2},
keywords = {programmable quantum processor; POVM},
language = {eng},
issn = {1050-2947},
journal = {Physical Review A},
title = {Realization of positive-operator-valued measures using measurement-assisted programmable quantum processors},
volume = {Vol. 72},
year = {2005}
}
TY - JOUR
ID - 608125
AU - Ziman, Mário - Bužek, Vladimír
PY - 2005
TI - Realization of positive-operator-valued measures using measurement-assisted programmable quantum processors
JF - Physical Review A
VL - Vol. 72
IS - No. 2
SP - A022343
EP - A022343
PB - American Physical Society
SN - 10502947
KW - programmable quantum processor
KW - POVM
N2 - We study possible realizations of generalized quantum measurements on measurement-assisted programmable quantum processors. We focus our attention on the realization of von Neumann measurements and informationally complete positive-operator-valued measures. Nielsen and Chuang [Phys. Rev. Lett. 79, 321 (1997)] have shown that two unitary transformations implementable by the same programmable processor require mutually orthogonal states. We show that two different von Neumann measurements can be encoded into nonorthogonal program states. Nevertheless, given the dimension of a Hilbert space of the program register the number of implementable von Neumann measurements is still limited. As an example of a programmable processor we use the so-called quantum-information distributor.
ER -
ZIMAN, Mário a Vladimír BUŽEK. Realization of positive-operator-valued measures using measurement-assisted programmable quantum processors. \textit{Physical Review A}. New York: American Physical Society, 2005, Vol. 72, No. 2, s.~A022343, 7 s. ISSN~1050-2947.
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