Abstract:
A special-purpose quantum circuit that can be programmed to evaluate the expectation value of any operator was described. Some applications of this circuit and its relation to known instances of quantum state tomography were also discussed. The circuit has a program whose state encodes the operator, whose expectation value is to be evaluated. The expectation value is obtained by performing a measurement of the polarization of the auxiliary qubit.
Registro:
Documento: |
Artículo
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Título: | Quantum gate arrays can be programmted to evaluate the expectation value of any operator |
Autor: | Paz, J.P.; Roncaglia, A. |
Filiación: | Depto. de Fís. J.J. Giambiagi, FCEN, Ciudad Universitaria, Pabellón 1, 1428 Buenos Aires, Argentina Theoretical Division, LANL, MSB213, Los Alamos, NM 87545, United States
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Palabras clave: | Computational methods; Gates (transistor); Matrix algebra; Polarization; Scattering; Tomography; Quantum circuits; Quantum gate arrays; Quantum electronics |
Año: | 2003
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Volumen: | 68
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Número: | 5
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Página de inicio: | 523161
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Página de fin: | 523165
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Título revista: | Physical Review A - Atomic, Molecular, and Optical Physics
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Título revista abreviado: | Phys Rev A
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ISSN: | 10502947
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CODEN: | PLRAA
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v68_n5_p523161_Paz |
Referencias:
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Citas:
---------- APA ----------
Paz, J.P. & Roncaglia, A.
(2003)
. Quantum gate arrays can be programmted to evaluate the expectation value of any operator. Physical Review A - Atomic, Molecular, and Optical Physics, 68(5), 523161-523165.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v68_n5_p523161_Paz [ ]
---------- CHICAGO ----------
Paz, J.P., Roncaglia, A.
"Quantum gate arrays can be programmted to evaluate the expectation value of any operator"
. Physical Review A - Atomic, Molecular, and Optical Physics 68, no. 5
(2003) : 523161-523165.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v68_n5_p523161_Paz [ ]
---------- MLA ----------
Paz, J.P., Roncaglia, A.
"Quantum gate arrays can be programmted to evaluate the expectation value of any operator"
. Physical Review A - Atomic, Molecular, and Optical Physics, vol. 68, no. 5, 2003, pp. 523161-523165.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v68_n5_p523161_Paz [ ]
---------- VANCOUVER ----------
Paz, J.P., Roncaglia, A. Quantum gate arrays can be programmted to evaluate the expectation value of any operator. Phys Rev A. 2003;68(5):523161-523165.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v68_n5_p523161_Paz [ ]