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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