| DUSEK, Miloslav and Vladimír BŮŽEK. Quantum multimeters: A programmable state discriminator. Physical Review A. New York: American Physical Society, 2002, vol. 66, No 02, p. 022112-1;022122-5, 5 pp. ISSN 1050-2947. |
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@article{484396,
author = {Dusek, Miloslav and Bůžek, Vladimír},
article_location = {New York},
article_number = {02},
keywords = {quantum information; quantum measurements; quantum processors},
language = {eng},
issn = {1050-2947},
journal = {Physical Review A},
title = {Quantum multimeters: A programmable state discriminator},
volume = {66},
year = {2002}
}
TY - JOUR
ID - 484396
AU - Dusek, Miloslav - Bůžek, Vladimír
PY - 2002
TI - Quantum multimeters: A programmable state discriminator
JF - Physical Review A
VL - 66
IS - 02
SP - 022112-1;022122-5
EP - 022112-1;022122-5
PB - American Physical Society
SN - 10502947
KW - quantum information
KW - quantum measurements
KW - quantum processors
N2 - We propose a ``programmable'' quantum device that is able to perform a specific generalized measurement from a certain set of measurements depending on a quantum state of a ``program register''. The state of the program register sets the measurement device to perform a specific measurement. In particular, we study a situation when the programmable measurement device serves for the unambiguous discrimination between non-orthogonal states. The particular pair of states that can be unambiguously discriminated is specified by the state of a program qubit. The probability of successful discrimination is not optimal for all admissible pairs. However, for some subsets it can be very close to the optimal value.
ER -
DUSEK, Miloslav and Vladimír BŮŽEK. Quantum multimeters: A programmable state discriminator. \textit{Physical Review A}. New York: American Physical Society, 2002, vol.~66, No~02, p.~022112-1;022122-5, 5 pp. ISSN~1050-2947.
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