| DUŠEK, Miloslav and Vladimír BŮŽEK. Quantum-controlled measurement device for quantum-state discrimination. Physical Review A (Atomic, Molecular, and Optical Physics). 2002, vol. 66, 20/08/2002, p. 022112-1; 022112-5, 5 pp. ISSN 1094-1622. |
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@article{490049,
author = {Dušek, Miloslav and Bůžek, Vladimír},
article_number = {20/08/2002},
keywords = {quantum measurement; quantum processors},
language = {eng},
issn = {1094-1622},
journal = {Physical Review A (Atomic, Molecular, and Optical Physics)},
title = {Quantum-controlled measurement device for quantum-state discrimination},
url = {http://link.aps.org/abstract/PRA/v66/e022112},
volume = {66},
year = {2002}
}
TY - JOUR
ID - 490049
AU - Dušek, Miloslav - Bůžek, Vladimír
PY - 2002
TI - Quantum-controlled measurement device for quantum-state discrimination
JF - Physical Review A (Atomic, Molecular, and Optical Physics)
VL - 66
IS - 20/08/2002
SP - 022112-1; 022112-5
EP - 022112-1; 022112-5
SN - 10941622
KW - quantum measurement
KW - quantum processors
UR - http://link.aps.org/abstract/PRA/v66/e022112
L2 - http://link.aps.org/abstract/PRA/v66/e022112
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." In particular, we study a situation when the programmable measurement device serves for the unambiguous discrimination between nonorthogonal 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 -
DUŠEK, Miloslav and Vladimír BŮŽEK. Quantum-controlled measurement device for quantum-state discrimination. \textit{Physical Review A (Atomic, Molecular, and Optical Physics)}. 2002, vol.~66, 20/08/2002, p.~022112-1; 022112-5, 5 pp. ISSN~1094-1622.
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