Abstract:
We present a phase-space description of the process of quantum teleportation for a system with an N-dimensional space of states. For this purpose we define a discrete Wigner function which is a minor variation of previously existing ones. This function is useful to represent a composite quantum system in phase space and to analyze situations where entanglement between subsystems is relevant (dimensionality of the space of states of each subsystem is arbitrary). We also describe how a direct tomographic measurement of this Wigner function can be performed. © 2002 The American Physical Society.
Registro:
Documento: |
Artículo
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Título: | Discrete Wigner functions and the phase-space representation of quantum teleportation |
Autor: | Paz, J.P. |
Filiación: | Departamento de Física, “Juan José Giambiagi", Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Pabellón 1, Buenos Aires, 1428, 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: | 8
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DOI: |
http://dx.doi.org/10.1103/PhysRevA.65.062311 |
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_p8_Paz |
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Citas:
---------- APA ----------
(2002)
. Discrete Wigner functions and the phase-space representation of quantum teleportation. Physical Review A - Atomic, Molecular, and Optical Physics, 65(6), 8.
http://dx.doi.org/10.1103/PhysRevA.65.062311---------- CHICAGO ----------
Paz, J.P.
"Discrete Wigner functions and the phase-space representation of quantum teleportation"
. Physical Review A - Atomic, Molecular, and Optical Physics 65, no. 6
(2002) : 8.
http://dx.doi.org/10.1103/PhysRevA.65.062311---------- MLA ----------
Paz, J.P.
"Discrete Wigner functions and the phase-space representation of quantum teleportation"
. Physical Review A - Atomic, Molecular, and Optical Physics, vol. 65, no. 6, 2002, pp. 8.
http://dx.doi.org/10.1103/PhysRevA.65.062311---------- VANCOUVER ----------
Paz, J.P. Discrete Wigner functions and the phase-space representation of quantum teleportation. Phys Rev A. 2002;65(6):8.
http://dx.doi.org/10.1103/PhysRevA.65.062311