Hydrodynamic response of a trapped superfluid to a periodic perturbation
العنوان: | Hydrodynamic response of a trapped superfluid to a periodic perturbation |
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المؤلفون: | Shuwei Jin, Sébastien Laurent, Frédéric Chevy |
المساهمون: | Laboratoire Kastler Brossel (LKB (Lhomond)), Université Pierre et Marie Curie - Paris 6 (UPMC)-Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Chevy, Frédéric |
المصدر: | The European Physical Journal Special Topics |
سنة النشر: | 2019 |
مصطلحات موضوعية: | Physics, [PHYS.COND.GAS]Physics [physics]/Condensed Matter [cond-mat]/Quantum Gases [cond-mat.quant-gas], General Physics and Astronomy, Perturbation (astronomy), Critical ionization velocity, 01 natural sciences, WKB approximation, 010305 fluids & plasmas, Superfluidity, Classical mechanics, Periodic perturbation, Dissipated power, 0103 physical sciences, [PHYS.COND.GAS] Physics [physics]/Condensed Matter [cond-mat]/Quantum Gases [cond-mat.quant-gas], General Materials Science, Physical and Theoretical Chemistry, 010306 general physics |
الوصف: | In this article we discuss the hydrodynamic response of a superfluid to a periodic drive. Using a WKB description of the hy-drodynamic modes of the system, we show that contrary to Landau's argument, there is no critical velocity, but that the dissipated power nevertheless increases rapidly when the maximum velocity of the perturbation reaches the central sound velocity of the superfluid. |
وصف الملف: | application/pdf |
تدمد: | 1951-6355 |
DOI: | 10.1140/epjst/e2018-800024-0 |
URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d10d08573291f0808aa97230bddc1dc |
حقوق: | OPEN |
رقم الأكسشن: | edsair.doi.dedup.....6d10d08573291f0808aa97230bddc1dc |
قاعدة البيانات: | OpenAIRE |
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