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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