DUSEK, Miloslav a Vladimír BŮŽEK. Quantum multimeters: A programmable state discriminator. Physical Review A. New York: American Physical Society, 2002, roč. 66, č. 02, s. 022112-1;022122-5, 5 s. 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 a Vladimír BŮŽEK. Quantum multimeters: A programmable state discriminator. \textit{Physical Review A}. New York: American Physical Society, 2002, roč.~66, č.~02, s.~022112-1;022122-5, 5 s. ISSN~1050-2947.
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