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dc.contributor.authorÁlvarez Bajo, Osiris 
dc.contributor.authorLemus, R.
dc.contributor.authorCarvajal Zaera, Miguel 
dc.contributor.authorPérez Bernal, Francisco
dc.identifier.citationÁlvarez Bajo, O., Lemus, R., Carvajal Zaera, M., Pérez Bernal, F.: "Equivalent rotations associated with the permutation inversion group revisited: symmetry projection of the rovibrational functions of methane". Molecular Physics. Vol. 109, n. 5, p. 797-812 (2011). ISSN 0026-8976en_US
dc.description.abstractIn this work the analysis of the equivalent rotations from the permutation inversion group formalism is revisited. We emphasize that explicit knowledge of changes in the Euler angles are not required in order to determine the trans- formation that a given symmetry operation causes to the rotational functions when dealing with the permutation inversion group formalism. Indeed, matrix elements of the equivalent rotations are provided by a single Wigner’s D(j)(R) function. Taking advantage of this, we propose a symmetry projection approach to build the rovibrational functions of methane. This approach focus on the rele- vance of the isomorphism between permutations and equivalent rotations. In our method, symmetry adapted functions are obtained by simultaneous diagonaliza- tion of a set of commuting operators, whose representation is given in terms of direct products of Wigner’s D functions and vibrational matrix representations provided by a local scheme. The proposed approach is general and permits to ob- tain in a systematic fashion an orthonormal set of symmetry-projected functions, with good total angular momentum, and carrying the irreducible representations of the molecular symmetry groupen_US
dc.description.sponsorshipThis work has partially been supported by CONACyT, Mexico. This work has also been partially supported by the Spanish MEC and by European regional development funds (FEDER) under project CPAN-Ingenio (CSD2007-00042), and by the Junta de Andalucia (projects P07-FQM-02962 and P07-FQM-03014).
dc.publisherTaylor & Francisen_US
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España
dc.subject.otherPermutation-inversion groupen
dc.subject.otherEquivalent rotationsen
dc.subject.otherRo-vibrational functionsen
dc.subject.otherSymmetry projectionen
dc.titleEquivalent rotations associated with the permutation inversion group revisited: symmetry projection of the rovibrational functions of methaneen_US
dc.relation.projectIDEuropean regional development funds (FEDER) under project CPAN-Ingenio [CSD2007-00042]
dc.relation.projectIDJunta de Andalucia [P07-FQM-02962, P07-FQM-03014]

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