Autor: Shnir, Y. - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Oscillons in gapless theories
Autorzy:: Romańczukiewicz, Tomasz
Shnir, Y.
Wereszczyński, Andrzej
Dorey, P.
Opis:: We show that large scale oscillons, i.e., quasiperiodic, long-living particlelike solutions, may exist in massless theories, too. Their existence is explained using an effective (smeared) mass threshold which takes into account nonlinear (finite) perturbations.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

Artykuł

Skocz do pozycji: 2.

Tytuł:: Multikink scattering in the $\phi^6$ model revisited
Autorzy:: García Martín-Caro, A.
Wereszczyński, Andrzej
Adam, C.
Oleś, Katarzyna
Dorey, P.
Huidobro, M.
Romańczukiewicz, Tomasz
Shnir, Y.
Opis:: Antikink-kink ($\bar{K}K$) collisions in the $\phi^6$ model exhibit resonant scattering although the $\phi^6$ kinks do not support any bound states to which energy could be transferred. In P. Dorey et al. [Kink-Antikink Collisions in the $\phi^6$ Model, Phys. Rev. Lett. 107, 091602 (2011)] it was conjectured that, instead, energy is transferred to a collective bound mode of the full $\bar{K}K$ configuration. Here we present further strong evidence for this conjecture. Further, we construct a collective coordinate model (CCM) for $\bar{K}K$ scattering based on this collective bound mode trapped between the $\bar{K}K$ pair which allows us to reproduce the full dynamics of $\bar{K}K$ scattering with striking accuracy. We also study kink-antikink ($K\bar{K}$) scattering and its description by a CCM. In this case a significant role of radiation is discovered.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

Artykuł

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