Thesis Collection
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Browsing by Author "Iachello, F."
Now showing items 1-4 of 4
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Algebraic approach to two-dimensional systems : shape phase transitions, monodromy, and thermodynamic quantities
Pérez Bernal, Francisco
; Iachello, F. (American Physical Society, 2008)
We analyze shape phase transitions in two-dimensional algebraic models. We apply our analysis to linearto- bent transitions in molecules and point out what observables are particularly sensitive to the transition ... -
A quantitative study of non-Condon effects in the S2O C̃→X̃ emission spectrum
Iachello, F.; Pérez Bernal, Francisco; Müller, T.; Vaccaro, P. H. (American Institute of Physics, 2000)
A novel technique has been developed for the quantitative study of vibronically-resolved transition intensities in polyatomic molecules beyond the Condon approximation. Matrix elements of coordinate-dependent transition ... -
A study of the bending motion in tetratomic molecules by the algebraic operator expansion method
Larese, Danielle; Caprio, Mark A.; Pérez Bernal, Francisco; Iachello, F. (American Institute of Physics, 2014)
We study the bending motion in the tetratomic molecules C2H2 (˜X 1 + g ), C2H2 ( ˜A 1Au) trans-S1, C2H2 ( ˜A 1A2) cis-S1, and ˜X 1A1 H2CO. We show that the algebraic operator expansion method with only linear terms ... -
The vibronically-resolved emission spectrum of disulfur monoxide S2O : an algebraic calculation and quantitative interpretation of Franck–Condon transition intensities
Müller, T.; Vaccaro, P. H.; Pérez Bernal, Francisco; Iachello, F. (American Institute of Physics, 1999)
Emission spectra obtained from jet-cooled disulfur monoxide (S2O) molecules have been interpreted by means of a novel Lie algebraic formalism that makes possible the facile evaluation of multidimensional Franck–Condon ...
