Numerical Computation of Quantized Vortices in the Bose-Einstein Condensate

2002 ◽  
pp. 157-169 ◽  
Author(s):  
Qiang Du
Keyword(s):  
Numerical Computation ◽  
Einstein Condensate ◽  
Quantized Vortices ◽  
Bose Einstein Condensate ◽  
Bose Einstein

scholarly journals Spatially non-uniform ground state and quantized vortices in a two-component Bose-Einstein condensate of magnons

2012 ◽  
Vol 2 (1) ◽  
Author(s):  
P. Nowik-Boltyk ◽  
O. Dzyapko ◽  
V. E. Demidov ◽  
N. G. Berloff ◽  
S. O. Demokritov
Keyword(s):  
Ground State ◽  
Einstein Condensate ◽  
Quantized Vortices ◽  
Bose Einstein Condensate ◽  
Two Component ◽  
Bose Einstein

scholarly journals Evolution of large-scale flow from turbulence in a two-dimensional superfluid

Science ◽  
2019 ◽  
Vol 364 (6447) ◽  
pp. 1267-1271 ◽  
Author(s):  
Shaun P. Johnstone ◽  
Andrew J. Groszek ◽  
Philip T. Starkey ◽  
Christopher J. Billington ◽  
Tapio P. Simula ◽  
...  
Keyword(s):  
Large Scale ◽  
Einstein Condensate ◽  
Quantized Vortices ◽  
Two Dimensional ◽  
Inverse Energy Cascade ◽  
Bose Einstein Condensate ◽  
Quantitative Studies ◽  
Interacting Systems ◽  
Large Scale Flow ◽  
Bose Einstein

Nonequilibrium interacting systems can evolve to exhibit large-scale structure and order. In two-dimensional turbulent flow, the seemingly random swirling motion of a fluid can evolve toward persistent large-scale vortices. To explain such behavior, Lars Onsager proposed a statistical hydrodynamic model based on quantized vortices. Here, we report on the experimental confirmation of Onsager’s model. We dragged a grid barrier through an oblate superfluid Bose–Einstein condensate to generate nonequilibrium distributions of vortices. We observed signatures of an inverse energy cascade driven by the evaporative heating of vortices, leading to steady-state configurations characterized by negative absolute temperatures. Our results open a pathway for quantitative studies of emergent structures in interacting quantum systems driven far from equilibrium.

scholarly journals Deterministic creation, pinning, and manipulation of quantized vortices in a Bose-Einstein condensate

2016 ◽  
Vol 93 (2) ◽  
Author(s):  
E. C. Samson ◽  
K. E. Wilson ◽  
Z. L. Newman ◽  
B. P. Anderson
Keyword(s):  
Einstein Condensate ◽  
Quantized Vortices ◽  
Bose Einstein Condensate ◽  
Bose Einstein

scholarly journals Generating and manipulating quantized vortices on-demand in a Bose-Einstein condensate: A numerical study

2016 ◽  
Vol 93 (2) ◽  
Author(s):  
B. Gertjerenken ◽  
P. G. Kevrekidis ◽  
R. Carretero-González ◽  
B. P. Anderson
Keyword(s):  
Numerical Study ◽  
Einstein Condensate ◽  
Quantized Vortices ◽  
On Demand ◽  
Bose Einstein Condensate ◽  
Bose Einstein

scholarly journals Controlled creation and decay of singly-quantized vortices in a polar magnetic phase

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Y. Xiao ◽  
M. O. Borgh ◽  
L. S. Weiss ◽  
A. A. Blinova ◽  
J. Ruostekoski ◽  
...  
Keyword(s):  
High Energy Physics ◽  
Magnetic Phase ◽  
Three Dimensional ◽  
High Energy ◽  
Einstein Condensate ◽  
Quantized Vortices ◽  
Ferromagnetic Phase ◽  
Bose Einstein Condensate ◽  
Vortex Lines ◽  
Bose Einstein

AbstractQuantized vortices appear in physical systems from superfluids and superconductors to liquid crystals and high energy physics. Unlike their scalar cousins, superfluids with complex internal structure can exhibit rich dynamics of decay and even fractional vorticity. Here, we experimentally and theoretically explore the creation and time evolution of vortex lines in the polar magnetic phase of a trapped spin-1 87Rb Bose–Einstein condensate. A process of phase-imprinting a nonsingular vortex, its decay into a pair of singular spinor vortices, and a rapid exchange of magnetic phases creates a pair of three-dimensional, singular singly-quantized vortex lines with core regions that are filled with atoms in the ferromagnetic phase. Atomic interactions guide the subsequent vortex dynamics, leading to core structures that suggest the decay of the singly-quantized vortices into half-quantum vortices.

scholarly journals Stability of quantized vortices in a Bose-Einstein condensate confined in an optical lattice

2008 ◽  
Vol 77 (5) ◽  
Author(s):  
K. J. H. Law ◽  
L. Qiao ◽  
P. G. Kevrekidis ◽  
I. G. Kevrekidis
Keyword(s):  
Optical Lattice ◽  
Einstein Condensate ◽  
Quantized Vortices ◽  
Bose Einstein Condensate ◽  
Bose Einstein
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