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Abstract:

We propose a Wigner transformation of the density matrix and operators of a system with bounded coordinates and discrete momentum spectra (typically, a particle in a box) and prove that all requirements for such a transformation are satisfied. The phase-space mapping adopted here is employed to compute the quasiprobability distributions associated with the pure states of a quantum rotator and the image of the angular momentum operator. The mapping of the dynamics of these objects, both in the reversible and irreversible frame, is constructed as well, and the conditions for the existence of a classical limit in the form of a Fokker-Planck equation of motion are investigated. © 1991 The American Physical Society.

Registro:

Documento: Artículo
Título:Phase-space description of quantum rotations
Autor:Gatica, S.M.; Hernandez, E.S.
Filiación:Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428, Buenos Aires, Argentina
Año:1991
Volumen:43
Número:9
Página de inicio:4594
Página de fin:4601
DOI: http://dx.doi.org/10.1103/PhysRevA.43.4594
Título revista:Physical Review A
ISSN:10502947
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v43_n9_p4594_Gatica

Referencias:

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Citas:

---------- APA ----------
Gatica, S.M. & Hernandez, E.S. (1991) . Phase-space description of quantum rotations. Physical Review A, 43(9), 4594-4601.
http://dx.doi.org/10.1103/PhysRevA.43.4594
---------- CHICAGO ----------
Gatica, S.M., Hernandez, E.S. "Phase-space description of quantum rotations" . Physical Review A 43, no. 9 (1991) : 4594-4601.
http://dx.doi.org/10.1103/PhysRevA.43.4594
---------- MLA ----------
Gatica, S.M., Hernandez, E.S. "Phase-space description of quantum rotations" . Physical Review A, vol. 43, no. 9, 1991, pp. 4594-4601.
http://dx.doi.org/10.1103/PhysRevA.43.4594
---------- VANCOUVER ----------
Gatica, S.M., Hernandez, E.S. Phase-space description of quantum rotations. 1991;43(9):4594-4601.
http://dx.doi.org/10.1103/PhysRevA.43.4594