Hydrodynamic response of a trapped superfluid to a periodic perturbation
In this article, we discuss the hydrodynamic response of a superfluid to a periodic drive. Using a WKB description of the hydrodynamic 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...
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| Veröffentlicht in: | The European physical journal. ST, Special topics Special topics, 2019-03, Vol.227 (15-16), p.2263-2273 |
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| container_end_page | 2273 |
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| container_issue | 15-16 |
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| container_title | The European physical journal. ST, Special topics |
| container_volume | 227 |
| creator | Jin, Shuwei Laurent, Sébastien Chevy, Frédéric |
| description | In this article, we discuss the hydrodynamic response of a superfluid to a periodic drive. Using a WKB description of the hydrodynamic 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. |
| doi_str_mv | 10.1140/epjst/e2018-800024-0 |
| format | Article |
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| identifier | ISSN: 1951-6355 |
| ispartof | The European physical journal. ST, Special topics, 2019-03, Vol.227 (15-16), p.2263-2273 |
| issn | 1951-6355 1951-6401 |
| language | eng |
| recordid | cdi_proquest_journals_2195372362 |
| source | Springer Nature - Complete Springer Journals |
| subjects | Acoustic velocity Atomic Classical and Continuum Physics Condensed Matter Physics Critical velocity Fluids Materials Science Measurement Science and Instrumentation Molecular Non-equilibrium Dynamics: Quantum Systems and Foundations of Quantum Mechanics Optical and Plasma Physics Periodic variations Perturbation Physics Physics and Astronomy Regular Article Superfluidity |
| title | Hydrodynamic response of a trapped superfluid to a periodic perturbation |
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