Abstract:
We represent both the states and the evolution of a quantum computer in phase space using the discrete Wigner function. We study properties of the phase space representation of quantum algorithms: apart from analyzing important examples, such as the Fourier transform and Grover’s search, we examine the conditions for the existence of a direct correspondence between quantum and classical evolutions in phase space. Finally, we describe how to measure directly the Wigner function in a given phase-space point by means of a tomographic method that, itself, can be interpreted as a simple quantum algorithm. © 2002 The American Physical Society.
Registro:
| Documento: |
Artículo
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| Título: | Quantum computers in phase space |
| Autor: | Miquel, C.; Paz, J.P.; Saraceno, M. |
| Filiación: | Departamento de Física, “Juan José Giambiagi", Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Pabellón 1, Buenos Aires, 1428, Argentina
Institute for Theoretical Physics, Santa Barbara, CA, 93106-4030, United States
Unidad de Actividad Física, Buenos Aires, Argentina
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| Año: | 2002
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| Volumen: | 65
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| Número: | 6
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| Página de inicio: | 14
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| DOI: |
http://dx.doi.org/10.1103/PhysRevA.65.062309 |
| 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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| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v65_n6_p14_Miquel |
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Citas:
---------- APA ----------
Miquel, C., Paz, J.P. & Saraceno, M.
(2002)
. Quantum computers in phase space. Physical Review A - Atomic, Molecular, and Optical Physics, 65(6), 14.
http://dx.doi.org/10.1103/PhysRevA.65.062309---------- CHICAGO ----------
Miquel, C., Paz, J.P., Saraceno, M.
"Quantum computers in phase space"
. Physical Review A - Atomic, Molecular, and Optical Physics 65, no. 6
(2002) : 14.
http://dx.doi.org/10.1103/PhysRevA.65.062309---------- MLA ----------
Miquel, C., Paz, J.P., Saraceno, M.
"Quantum computers in phase space"
. Physical Review A - Atomic, Molecular, and Optical Physics, vol. 65, no. 6, 2002, pp. 14.
http://dx.doi.org/10.1103/PhysRevA.65.062309---------- VANCOUVER ----------
Miquel, C., Paz, J.P., Saraceno, M. Quantum computers in phase space. Phys Rev A. 2002;65(6):14.
http://dx.doi.org/10.1103/PhysRevA.65.062309
