Incommensurable matter-wave jets in quasi-1D geometry

Matter-wave jets are ejected from a Bose-Einstein condensate subjected to a modulation of the interaction strength. For sufficiently strong modulation additional higher harmonic matter-wave jets emerge. Here we report the first experimental observation of incommensurable "golden" \(\frac{1...

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Published inarXiv.org
Main Authors Mežnaršič, Tadej, Rok Žitko, Gosar, Katja, Pirman, Jure, Arh, Katja, Jug, Matevž, Zupanič, Erik, Jeglič, Peter
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 08.10.2024
Subjects
Bose-Einstein condensates
Jets
Modulation
Phase diagrams
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Summary:Matter-wave jets are ejected from a Bose-Einstein condensate subjected to a modulation of the interaction strength. For sufficiently strong modulation additional higher harmonic matter-wave jets emerge. Here we report the first experimental observation of incommensurable "golden" \(\frac{1+\sqrt{5}}{2}\) matter-wave jets in a Bose-Einstein condensate exposed to a single frequency interaction modulation. We study the formation of higher-order jets and the corresponding incommensurable density waves in quasi-one-dimensional geometry with numerical one dimensional (1D) Gross-Pitaevskii equation simulation. We explore the process of jet formation experimentally and theoretically for a wide range of modulation amplitudes and frequencies and establish a phase diagram delineating different regimes of jet formation.
ISSN:2331-8422