Abstract
We observe interlaced square vortex lattices in rotating dilute-gas spinor Bose-Einstein condensates (BEC). After preparing a hexagonal vortex lattice in a one-component BEC in an internal atomic state vertical bar 1>, we coherently transfer a fraction of the superfluid to a different state vertical bar 2>. The subsequent evolution of this pseudo-spin-1/2 superfluid towards a state of offset square lattices involves an intriguing interplay of phase-separation and -mixing dynamics, both macroscopically and on the length scale of the vortex cores, and a stage of vortex turbulence. The stability of the square structure is proved by its response to applied shear perturbations. An interference technique shows the spatial offset between the two vortex lattices. Vortex cores in either component are filled by fluid of the other component, such that the spin-1/2 order parameter forms a Skyrmion lattice.
Schweikhard, V;
Coddington, I;
Engels, P;
Tung, S;
Cornell, E A
[1]
- JILA, National Institute of Standards and Technology and University of Colorado and Department of Physics, University of Colorado, Boulder, Colorado 80309-0440 (United States)
Citation Formats
Schweikhard, V, Coddington, I, Engels, P, Tung, S, and Cornell, E A.
Vortex-lattice dynamics in rotating spinor Bose-Einstein condensates.
United States: N. p.,
2004.
Web.
doi:10.1103/PhysRevLett.93.210403.
Schweikhard, V, Coddington, I, Engels, P, Tung, S, & Cornell, E A.
Vortex-lattice dynamics in rotating spinor Bose-Einstein condensates.
United States.
https://doi.org/10.1103/PhysRevLett.93.210403
Schweikhard, V, Coddington, I, Engels, P, Tung, S, and Cornell, E A.
2004.
"Vortex-lattice dynamics in rotating spinor Bose-Einstein condensates."
United States.
https://doi.org/10.1103/PhysRevLett.93.210403.
@misc{etde_20619347,
title = {Vortex-lattice dynamics in rotating spinor Bose-Einstein condensates}
author = {Schweikhard, V, Coddington, I, Engels, P, Tung, S, and Cornell, E A}
abstractNote = {We observe interlaced square vortex lattices in rotating dilute-gas spinor Bose-Einstein condensates (BEC). After preparing a hexagonal vortex lattice in a one-component BEC in an internal atomic state vertical bar 1>, we coherently transfer a fraction of the superfluid to a different state vertical bar 2>. The subsequent evolution of this pseudo-spin-1/2 superfluid towards a state of offset square lattices involves an intriguing interplay of phase-separation and -mixing dynamics, both macroscopically and on the length scale of the vortex cores, and a stage of vortex turbulence. The stability of the square structure is proved by its response to applied shear perturbations. An interference technique shows the spatial offset between the two vortex lattices. Vortex cores in either component are filled by fluid of the other component, such that the spin-1/2 order parameter forms a Skyrmion lattice.}
doi = {10.1103/PhysRevLett.93.210403}
journal = []
issue = {21}
volume = {93}
journal type = {AC}
place = {United States}
year = {2004}
month = {Nov}
}
title = {Vortex-lattice dynamics in rotating spinor Bose-Einstein condensates}
author = {Schweikhard, V, Coddington, I, Engels, P, Tung, S, and Cornell, E A}
abstractNote = {We observe interlaced square vortex lattices in rotating dilute-gas spinor Bose-Einstein condensates (BEC). After preparing a hexagonal vortex lattice in a one-component BEC in an internal atomic state vertical bar 1>, we coherently transfer a fraction of the superfluid to a different state vertical bar 2>. The subsequent evolution of this pseudo-spin-1/2 superfluid towards a state of offset square lattices involves an intriguing interplay of phase-separation and -mixing dynamics, both macroscopically and on the length scale of the vortex cores, and a stage of vortex turbulence. The stability of the square structure is proved by its response to applied shear perturbations. An interference technique shows the spatial offset between the two vortex lattices. Vortex cores in either component are filled by fluid of the other component, such that the spin-1/2 order parameter forms a Skyrmion lattice.}
doi = {10.1103/PhysRevLett.93.210403}
journal = []
issue = {21}
volume = {93}
journal type = {AC}
place = {United States}
year = {2004}
month = {Nov}
}