| ROŠKO, C., Vladimír BUŽEK, P.R. CHOUHA a M. HILLERY. Generalized measurements via programmable quantum processor. Physical Review A. New York: American Physical Society, 2003, roč. 68, č. 06, s. 2302-2309. ISSN 1050-2947. |
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@article{555264,
author = {Roško, C. and Bužek, Vladimír and Chouha, P.R. and Hillery, M.},
article_location = {New York},
article_number = {06},
keywords = {measurement; processor},
language = {eng},
issn = {1050-2947},
journal = {Physical Review A},
title = {Generalized measurements via programmable quantum processor},
volume = {68},
year = {2003}
}
TY - JOUR
ID - 555264
AU - Roško, C. - Bužek, Vladimír - Chouha, P.R. - Hillery, M.
PY - 2003
TI - Generalized measurements via programmable quantum processor
JF - Physical Review A
VL - 68
IS - 06
SP - 2302-2309
EP - 2302-2309
PB - American Physical Society
SN - 10502947
KW - measurement
KW - processor
N2 - We show that it is possible to control the trade-off between information gain and disturbance in generalized measurements of qudits by utilizing a programmable quantum processor. This universal quantum machine allows us to perform a generalized measurement on the initial state of the input qudit to construct a Husimi function of this state. The trade-off between the gain and the disturbance of the qudit is controlled by the initial state of ancillary system that acts as a program for the quantum-information distributor. The trade-off fidelity does not depend on the initial state of the qudit.
ER -
ROŠKO, C., Vladimír BUŽEK, P.R. CHOUHA a M. HILLERY. Generalized measurements via programmable quantum processor. \textit{Physical Review A}. New York: American Physical Society, 2003, roč.~68, č.~06, s.~2302-2309. ISSN~1050-2947.
|
