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Semiclassics of rotation and torsion.

Braun, Petr A. and Gerwinski, Peter and Haake, Fritz and Schomerus, Henning (1996) Semiclassics of rotation and torsion. Zeitschrift für Physik B, 100. p. 115.

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    Abstract

    We discuss semiclassical approximations of the spectrum of the periodically kicked top, both by diagonalizing the semiclassically approximated Floquet matrix F and by employing periodic-orbit theory. In the regular case when F accounts only for a linear rotation periodic-orbit theory yields the exact spectrum. In the chaotic case the first method yields the quasienergies with an accuracy of better than 3% of the mean spacing. By working in the representation where the torsional part of the Floquet matrix is diagonal our semiclassical work is mostly an application of the asymptotics of the rotation matrix, i.\,e.~of Wigner's so-calledd -functions.

    Item Type: Article
    Journal or Publication Title: Zeitschrift für Physik B
    Subjects:
    Departments: Faculty of Science and Technology > Physics
    ID Code: 715
    Deposited By: Dr Henning Schomerus
    Deposited On: 31 Oct 2007
    Refereed?: Yes
    Published?: Published
    Last Modified: 26 Jul 2012 18:19
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/715

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