111 citations · 388 across the 8 of their papers we have counts for
10 papers
Scattering of topological solitons on holes and barriers
Bernard Piette, W. J. Zakrzewski, Joachim Brand
We study the scattering properties of topological solitons on obstructions in the form of holes and barriers. We use the 'new baby Skyrme' model in (2+1) dimensions and we model th…
Polarizability and dynamic structure factor of the one-dimensional Bose gas near the Tonks-Girardeau limit at finite temperatures
Alexander Yu. Cherny, Joachim Brand
Correlation functions related to the dynamic density response of the one-dimensional Bose gas in the model of Lieb and Liniger are calculated. An exact Bose-Fermi mapping is used t…
Friction and diffusion of matter-wave bright solitons
Subhasis Sinha, Alexander Yu. Cherny, Dmitry Kovrizhin +1
We consider the motion of a matter-wave bright soliton under the influence of a cloud of thermal particles. In the ideal one-dimensional system, the scattering process of the quasi…
Enhanced Quantum Reflection of Matter-Wave Solitons
Chaohong Lee, Joachim Brand
Matter-wave bright solitons are predicted to reflect from a purely attractive potential well although they are macroscopic objects with classical particle-like properties. The non-…
Emergence of superfluid transport in a dynamical system of ultracold atoms
Joachim Brand, Andrey R. Kolovsky
The dynamics of a Bose-Einstein condensate is studied theoretically in a combined periodic plus harmonic external potential. Different dynamical regimes of stable and unstable coll…
The Dynamic Structure Factor of the 1D Bose Gas near the Tonks-Girardeau Limit
Joachim Brand, Alexander Yu. Cherny
While the 1D Bose gas appears to exhibit superfluid response under certain conditions, it fails the Landau criterion according to the elementary excitation spectrum calculated by L…