Prof.
PABLO VILLARREAL
(INSTITUTO DE FISICA FUNDAMENTAL (CSIC))
17/10/2008 09:00
Talks at Critical Stability V (Erice, October 2008)
Normal
Doing a parallelism of nuclei/electrons with dopant/helium atoms, a quantum chemistry approach is used to perform spectral simulations of molecular species embedded in helium clusters of variable size.
To account for the spin characteristics of the solvent, Hartree or Hartree-Fock methodology is applied to obtain energies and structural properties of the aggregates. In this frame, one...
Dmitri Fedorov
(Aarhus University)
17/10/2008 09:35
Talks at Critical Stability V (Erice, October 2008)
Normal
Determination of the energy and the width of a resonance from experimental data is not an unambiguous procedure, in particular for broader resonances. Likewise, it is not unusual that different theoretical approaches to calculation of resonances result in somewhat different resonance parameters.
In an attempt to clarify the situation we perform an investigation, using a simple model quantum...
Prof.
Sergy Yu. Grebenshchikov
(Max-Planck-Institut für Dynamik und Selbstorganisation, Göttingen)
17/10/2008 10:10
Talks at Critical Stability V (Erice, October 2008)
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The three-body recombination reaction,
O_2 + O + M --> O_3 + M (1)
is one of the central reactions of the Chapman cycle controlling the stability of the stratospheric ozone (O_3) layer. This reaction, in which O_3 is initially formed at dissociation threshold, is also responsible for large enrichments of heavy isotopomers of...
Prof.
Tobias Frederico
(ITA, São José dos Campos, Brazil)
17/10/2008 11:00
Talks at Critical Stability V (Erice, October 2008)
Normal
A bi-dimensional map in the parameter space can be defined in the Efimov limit by the critical conditions for an excited state in three-body systems with two-identical particles.
The scattering lengths of the two-body subsystems and one three-body scale define the
parametric space. The border of the map encloses a region where excited states do exist (see ref. [1]). In this parameter...
Joseph Macek
(University of Tennessee and Oak Ridge National Laboratory)
17/10/2008 11:35
Talks at Critical Stability V (Erice, October 2008)
Normal
For two particles it is often convenient to replace local or non-local potentials by zero-range interactions. Since they are zero-range, these interactions can often be replaced by boundary conditions at a point where the separation between two particles vanishes. In either case, zero-range potentials are useful when the details of the interaction at small distances are not critical for...
