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  • From: StatFizSzeminar <statfiz AT>
  • To: fizinfo AT
  • Subject: [Fizinfo] Stat Fiz Szeminarium
  • Date: Fri, 04 Oct 2013 10:00:15 +0200
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  • List-id: ELFT HÍRADÓ <>

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ELTE TTK Fizikai Intézet

2013. október 9.
szerda, 11 óra

Francisco Gonzalez Montoya

Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México,

"Scattering of an electric charge off a perturbed magnetic dipole"

We take the scattering of electrons off a perturbed magnetic dipole as
an example for demonstrating chaotic scattering systems with 3 open
degrees of freedom. We explain the connection between the chaotic
invariant set, the scattering functions and the doubly differential
cross section. The ideal magnetic dipole has rotational symmetry;
therefore, the dynamics has a conserved angular momentum, and the
chaotic set of the 3 degrees of freedom system can be represented as a
stack of chaotic sets of the reduced 2 degrees of freedom system where
the value of the conserved angular momentum serves as stack parameter.
Any real magnet deviates from a perfect dipole, but it is possible to
explain why the qualitative properties of the cross section are robust
against perturbations of the system.

1117, Budapest, Pázmány P. sétány 1/A, Északi tömb 2.54

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