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Critical stability

13–17 Oct 2008
Ettore Majorama Centre for Scientific Culture
Europe/Paris timezone

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Session

Surface and scattering

13 Oct 2008, 15:00
Ettore Majorama Centre for Scientific Culture

Ettore Majorama Centre for Scientific Culture

ERICE, Sicily

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  1. 29. The physics of long-range atom-surface interactions and its applications
    Prof. Martial Ducloy (Université Paris 13)
    13/10/2008, 15:00
    Talks at Critical Stability V (Erice, October 2008)
    Normal
    he long range interaction between atoms and material surfaces or nanobodies is a case study of a pure quantum system interacting with macroscopic or mesoscopic systems. This field is of increasing importance owing to the fast development of nanoscience and nanotechnologies. The confinement of atoms inside a nano-size space strongly alters the internal properties of the atomic system and its...
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  2. 21. Poincar\'e Invariant Three-Body Scattering
    Prof. Charlotte Elster (Ohio University)
    13/10/2008, 15:35
    Talks at Critical Stability V (Erice, October 2008)
    Normal
    Traditionally three-nucleon calculations are carried out by solving Faddeev equations in a partial wave truncated basis, working either in momentum or in coordinate space. In Ref.~\cite{1} the Faddeev equations were solved directly as function of vector variables for scattering at intermediate energies. The key advantage of this formulation lies in its applicability at higher energies,...
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  3. 52. Challenges and achievements in the ab-initio three- and four-body scattering calculations: the Coulomb force
    Dr Arnoldas Deltuva (Centro de F ́ısica Nuclear, University of Lisbon, Portugal)
    13/10/2008, 16:10
    Talks at Critical Stability V (Erice, October 2008)
    Normal
    There is a long history of theoretical prescriptions for the solution of the Coulomb problem in three-nucleon continuum. Most of them employ configuration-space framework [1, 2, 3]. In contrast, we solve momentum-space integral equations. The method we use for the inclusion of the Coulomb interaction is based on the ideas proposed in Ref. [4] for two charged particle scattering and...
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  4. 27. How to model p-scattering using point interactions and related three-body problems
    Dr Pavel Kurasov (Lund University)
    13/10/2008, 17:00
    Talks at Critical Stability V (Erice, October 2008)
    Normal
    It is well-known that the celebrated Fermi delta potential model [1,2] leads to non-trivial scattering in the s-channel only. We propose a new family of point interaction models which may be used to describe particles with non-trivial interaction also in the $p$-channel while preserving exact solvability and point character of the interaction [3]. These models are given by self-adjoint...
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  5. 60. Feshbach resonances in ultracold atomic gases
    Dr Georg Bruun Bruun (Niels Bohr Institute, Copenhagen, Denmark)
    13/10/2008, 17:35
    Normal
    A low energy effective theory based on a microscopic multi-channel description of the atom-atom interaction is derived for the scattering of alkali atoms in different hyperfine states [1]. This theory describes all scattering properties, including medium effects, in terms of the singlet and triplet scattering lengths and the range of the atom-atom potential and provides a link between a...
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