Agenda de l’IDP

Séminaire de Physique Théorique

Collisions of solitons in non-integrable scalar theories
Yakov Shnir (University of Oldenburg)
Thursday 29 September 2022 14:00 -  Salle des séminaires  -  Salle 1180, bâtiment E2

Résumé :

We investigate soliton collisions a one-parameter family of scalar field theories in 1+1D. The models have a parametric dependent sextic potential with three local minima, and for suitably small values of the parameter its kinks have an internal structure in the form of two weakly-bound subkinks. We show that for these values of the parameter kink collisions are best understood as an independent sequence of collisions of these subkinks, and that a static mode analysis is not enough to explain resonant structures emerging in this model. We also emphasise the role of radiation and oscillon formation in the collision process.

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