10-1103-PhysRevA-91-033633.pdf (786.85 kB)
Scattering of matter waves in spatially inhomogeneous environments
journal contribution
posted on 2023-06-09, 04:54 authored by F Tsitoura, Peter KruegerPeter Krueger, P G Kevrekidis, D J FrantzeskakisWe study scattering of quasi-one-dimensional matter waves at an interface of two spatial domains, one with repulsive and one with attractive interatomic interactions. It is shown that the incidence of a Gaussian wave packet from the repulsive to the attractive region gives rise to generation of a soliton train.More specifically, the number of emergent solitons can be controlled, e.g., by the variation of the amplitude or the width of the incoming wave packet. Furthermore, we study the reflectivity of a soliton incident from the attractive region to the repulsive one. We find the reflection coefficient numerically and employ analytical methods, which treat the soliton as a particle (for moderate and large amplitudes) or a quasilinear wave packet (for small amplitudes), to determine the critical soliton momentum (as a function of the soliton amplitude) for which total reflection is observed.
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Publication status
- Published
File Version
- Published version
Journal
Physical Review AISSN
1050-2947Publisher
American Physical SocietyExternal DOI
Issue
3Volume
91Page range
3633Department affiliated with
- Physics and Astronomy Publications
Research groups affiliated with
- Atomic, Molecular and Optical Physics Research Group Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2017-01-24First Open Access (FOA) Date
2017-01-24First Compliant Deposit (FCD) Date
2017-01-24Usage metrics
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