Now showing items 1-11 of 11

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      A calculation of low-lying collective states in odd-even nuclei  [Article]

      Alonso Alonso, Clara Eugenia; Arias Carrasco, José Miguel; Bijker, R.; Iachello, F. (Elsevier, 1984)
      We present results of a calculation of properties of low-lying collective quadrupole states in odd-even nuclei within the framework of the proton-neutron interacting boson-fermion model.
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      A general algebraic model for molecular vibrational spectroscopy  [Article]

      Frank, Alejandro; Lemus Casillas, Renato; Bijker, R.; Pérez Bernal, Francisco; Arias Carrasco, José Miguel (Elsevier, 1996)
      We introduce the anharmonic oscillator symmetry model to describe vibrational excitations in molecular systems exhibiting a high degree of symmetry. A systematic procedure is proposed to establish the relation between the ...
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      A local anharmonic treatment of vibrations of methane  [Article]

      Arias Carrasco, José Miguel; Pérez Bernal, Francisco; Frank, A.; Lemus Casillas, Renato; Bijker, R. (1997)
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      A symmetry adapted approach to molecular spectroscopy: the anharmonic oscillator symmetry model  [Article]

      Bijker, R.; Arias Carrasco, José Miguel; Pérez Bernal, Francisco; Frank, A.; Lemus Casillas, Renato (1996)
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      A symmetry adapted approach to vibrational excitations in atomic clusters  [Article]

      Frank, Alejandro; Lemus Casillas, Renato; Bijker, R.; Pérez Bernal, Francisco; Arias Carrasco, José Miguel (Springer Nature, 1998)
      An algebraic method especially suited to describe the strongly anharmonic vibrational spectra in molecules may be an appropriate framework to study the vibrational spectra of Na+n clusters, where nearly flat potential ...
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      A Symmetry-Adapted Algebraic Approach to Molecular Spectroscopy  [Article]

      Pérez Bernal, Francisco; Arias Carrasco, José Miguel; Frank, A.; Lemus, R.; Bijker, R. (Scielo, 1996)
      We apply a symmetry-adapted algebraic model to the vibrational excitations in D_3h and T_d molecules. A systematic procedure is used to establish the relation between the algebraic and configuration space formulations. In ...
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      Comment on “Boson-realization model for the vibrational spectra of tetrahedral molecules”  [Article]

      Lemus Casillas, Renato; Pérez Bernal, Francisco; Frank, Alejandro; Bijker, R.; Arias Carrasco, José Miguel (American Physical Society, 1997)
      An algebraic model in terms of a local harmonic boson realization was recently proposed to study molecular vibrational spectra [Zhong-Qi Ma et al., Phys. Rev. A 53, 2173 (1996)]. Because of the local nature of the bosons ...
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      Eigenvalue correlations and the distribution of ground state angular momenta for random many-body quantum systems  [Article]

      Barea, J.; Bijker, R.; Frank, A. (The American Physical Society, 2009)
      The observed preponderance of ground states with angular momentum L=0 in many-body quantum systems with random two-body interactions is analyzed in terms of correlation coefficients (covariances) among different eigenstates. ...
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      New supersymmetric quartet of nuclei in the A ∼ 190 mass region  [Article]

      Barea, J.; Bijker, R.; Frank, A.; Graw, G.; Hertenberger, R.; Wirth, H. F.; Christen, S.; Jolie, J.; Tonev, D.; Balodis, M. (The American Physical Society, 2009)
      We present evidence for a new supersymmetric quartet in the A~190 region of the nuclear mass table. New experimental information on transfer and neutron capture reactions to the odd-odd nucleus 194Ir strongly suggests the ...
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      On the relation between algebraic and configuration space calculations of molecular vibrations  [Article]

      Pérez Bernal, Francisco; Bijker, R.; Frank, A.; Lemus, R.; Arias Carrasco, José Miguel (Elsevier, 1996-03)
      The relation between algebraic and traditional calculations of molecular vibrations is investigated. An explicit connection between interactions in configuration space and the corresponding algebraic interactions is established.
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      Single-particle transfer and nuclear supersymmetry  [Article]

      Barea, J.; Bijker, R.; Frank, A.; Loyola, G. (American Physical Society, 2001-12-01)
      Transfer reactions constitute a stringent test for nuclear supersymmetry, a theory that simultaneously describes neighboring nuclei with bosonic and fermionic character. We construct and analytically evaluate ...