Dresden 2011 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 10: Quantum Gases: Bosons 2
Q 10.4: Vortrag
Montag, 14. März 2011, 15:15–15:30, HÜL 386
Solitons and solitons’ filaments in an array of one-dimensional dipolar condensates. — •Kazimierz Łakomy1, Rejish Nath2, and Luis Santos1 — 1Institut für Theoretische Physik, Leibniz Universität Hannover, Appelstrasse 2, 30167 Hannover, Germany — 2Max Planck Institute for the Physics of Complex Systems, Nöthnitzer Strasse 38, 01187 Dresden, Germany
Dipolar ultracold gases offer broad spectrum of novel physical phenomena due to the long-range and anisotropic character of the dipole-dipole interactions. The effects of the interactions are particularly relevant to what concerns the nonlinear properties of dipolar Bose Einstein condensates. In this talk, we will focus on the physics of one-dimensional solitons. After presenting some new properties of the solitons in dipolar gases, we will discuss the possibility of achieving solitons’ filaments in an array of dipolar condensates. Even in the case of the absence of a hopping between the sites of the array, the inter-site attractive dipole-dipole interactions are shown to introduce an inter-soliton attractive potential that leads to the formation of solitons’ filaments. We analyze this possibility for realistic systems with condensates of chromium and polar molecules, and discuss possible ways to probe the filaments.