aqora

Classical turbulence observed in a superfluid

R. Mark Wilson

An obstacle dragged through a Bose–Einstein condensate leaves a well-known pattern of vortices in its wake. An obstacle dragged through a Bose–Einstein condensate leaves a well-known pattern of vortices in its wake.

Physics TodayDec 1, 20160 citations

Precursor Phenomena of Nucleations of Quantized Vortices in the Presence of a Uniformly Moving Obstacle in Bose-Einstein Condensates

Masaya Kunimi, Yusuke Kato

arXiv:1305.3995Journal of Low Temperature PhysicsNov 4, 20132 citations

Classical-like wakes past elliptical obstacles in atomic Bose-Einstein condensates

G W Stagg, A J Allen, C F Barenghi +1 more

We reinvestigate numerically the classic problem of two-dimensional superfluid flow past an obstacle. Taking the obstacle to be elongated (perpendicular to the flow), rather than the usual circular form, is shown to promote the nucleation of quantized vortices, enhance their subsequent interactions, and lead to wakes which bear striking similarity to their classical (viscous) counterparts. Then, focussing on the recent experiment of Kwon et al. (arXiv:1403.4658) in a trapped condensate, we show that an elliptical obstacle leads to a cleaner and more efficient means to generate two-dimensional quantum turbulence.We reinvestigate numerically the classic problem of two-dimensional superfluid flow past an obstacle. Taking the obstacle to be elongated (perpendicular to the flow), rather than the usual circular form, is shown to promote the nucleation of quantized vortices, enhance their subsequent interactions, and lead to wakes which bear striking similarity to their classical (viscous) counterparts. Then, focussing on the recent experiment of Kwon et al. (arXiv:1403.4658) in a trapped condensate, we show that an elliptical obstacle leads to a cleaner and more efficient means to generate two-dimensional quantum turbulence.

arXiv:1411.4842Journal of Physics Conference SeriesMar 18, 201520 citations

Wave turbulence and vortices in Bose–Einstein condensation

Sergey Nazarenko, Miguel Onorato

arXiv:nlin/0507051Physica D Nonlinear PhenomenaJul 1, 2006121 citations

Generation of Vortices and Observation of Quantum Turbulence in an Oscillating Bose-Einstein Condensate

E. A. L. Henn, Jorge Amin Seman, G. Roati +2 more

arXiv:0910.2729Journal of Low Temperature PhysicsNov 6, 200938 citations

Classical-like wakes past elliptical obstacles in atomic Bose-Einstein condensates

GS Stagg, A. J. Allen, Carlo F. Barenghi +1 more

We reinvestigate numerically the classic problem of two-dimensional superfluid flow past an obstacle. Taking the obstacle to be elongated (perpendicular to the flow), rather than the usual circular form, is shown to promote the nucleation of quantized vortices, enhance their subsequent interactions, and lead to wakes which bear striking similarity to their classical (viscous) counterparts. Then, focussing on the recent experiment of Kwon et al. (arXiv:1403.4658) in a trapped condensate, we show that an elliptical obstacle leads to a cleaner and more efficient means to generate two-dimensional quantum turbulence.We reinvestigate numerically the classic problem of two-dimensional superfluid flow past an obstacle. Taking the obstacle to be elongated (perpendicular to the flow), rather than the usual circular form, is shown to promote the nucleation of quantized vortices, enhance their subsequent interactions, and lead to wakes which bear striking similarity to their classical (viscous) counterparts. Then, focussing on the recent experiment of Kwon et al. (arXiv:1403.4658) in a trapped condensate, we show that an elliptical obstacle leads to a cleaner and more efficient means to generate two-dimensional quantum turbulence.

Mar 25, 20150 citations

Classical precursor to turbulence observed in a superfluid

Abstract

Related papers

Classical precursor to turbulence observed in a superfluid

Abstract

Related papers