We propose and analyze a scheme to create dark solitons and vortices in Bose-Einstein condensates. This is achieved starting from a condensate in the internal state $|a〉$ and transferring the atoms to the internal state $|b〉$ via a Raman transition induced by laser light. By scanning adiabatically the Raman detuning, dark solitons and vortices are created.We propose and analyze a scheme to create dark solitons and vortices in Bose-Einstein condensates. This is achieved starting from a condensate in the internal state $|a〉$ and transferring the atoms to the internal state $|b〉$ via a Raman transition induced by laser light. By scanning adiabatically the Raman detuning, dark solitons and vortices are created.

arXiv:cond-mat/9710238Physical Review LettersApr 6, 1998212 citations

Vortices in Bose-Einstein Condensates: Experiments

Frédéric Chevy

Springer eBooksDec 29, 20070 citations

Vortices in Bose-Einstein condensates: A review of the experimental results

R. Srinivasan

PramanaJan 1, 200616 citations

Arbitrary coherent superpositions of quantized vortices in Bose-Einstein condensates via orbital angular momentum of light

Sulakshana Thanvanthri, Kishore T. Kapale, Jonathan P. Dowling

We recently proposed a scheme for the creation of coherent superpositions of vortex states in Bose-Einstein condensates (BECs) using orbital angular momentum (OAM) states of light [Phys. Rev. Lett. 95, 173601 (2005)]. Here we discuss further technical details of the proposal, provide an alternative, time-reversal-symmetric scheme for transfer of a superposition of OAM states of light to the BEC via a procedure analogous to the traditional stimulated Raman adiabatic passage technique, and discuss an alternative trap configuration conducive for sustaining large charge vortices. Superpositions of OAM states of light, that can be created using the existing experimental techniques, can be transferred to an initially nonrotating BEC via a specially devised Raman coupling scheme. The techniques proposed here open up avenues to study coherent interaction of OAM states of light with matter. The study could also be employed for performing various quantum-information-processing tasks with OAM states of light---including a memory for a quantum state of the initial superposition.We recently proposed a scheme for the creation of coherent superpositions of vortex states in Bose-Einstein condensates (BECs) using orbital angular momentum (OAM) states of light [Phys. Rev. Lett. 95, 173601 (2005)]. Here we discuss further technical details of the proposal, provide an alternative, time-reversal-symmetric scheme for transfer of a superposition of OAM states of light to the BEC via a procedure analogous to the traditional stimulated Raman adiabatic passage technique, and discuss an alternative trap configuration conducive for sustaining large charge vortices. Superpositions of OAM states of light, that can be created using the existing experimental techniques, can be transferred to an initially nonrotating BEC via a specially devised Raman coupling scheme. The techniques proposed here open up avenues to study coherent interaction of OAM states of light with matter. The study could also be employed for performing various quantum-information-processing tasks with OAM states of light---including a memory for a quantum state of the initial superposition.

arXiv:0803.2725Physical Review AMay 30, 200846 citations

Spontaneous vortices in the formation of Bose–Einstein condensates

Chad N. Weiler, Tyler W. Neely, David R. Scherer +3 more

arXiv:0807.3323NatureOct 1, 2008550 citations

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

E. Carlo Samson, Kali Wilson, Zachary L. Newman +1 more

We experimentally and numerically demonstrate deterministic creation and manipulation of a pair of oppositely charged singly quantized vortices in a highly oblate Bose-Einstein condensate (BEC). Two identical blue-detuned, focused Gaussian laser beams that pierce the BEC serve as repulsive obstacles for the superfluid atomic gas; by controlling the positions of the beams within the plane of the BEC, superfluid flow is deterministically established around each beam such that two vortices of opposite circulation are generated by the motion of the beams, with each vortex pinned to the in situ position of a laser beam. We study the vortex creation process, and show that the vortices can be moved about within the BEC by translating the positions of the laser beams. This technique can serve as a building block in future experimental techniques to create, on-demand, deterministic arrangements of few or many vortices within a BEC for precise studies of vortex dynamics and vortex interactions.We experimentally and numerically demonstrate deterministic creation and manipulation of a pair of oppositely charged singly quantized vortices in a highly oblate Bose-Einstein condensate (BEC). Two identical blue-detuned, focused Gaussian laser beams that pierce the BEC serve as repulsive obstacles for the superfluid atomic gas; by controlling the positions of the beams within the plane of the BEC, superfluid flow is deterministically established around each beam such that two vortices of opposite circulation are generated by the motion of the beams, with each vortex pinned to the in situ position of a laser beam. We study the vortex creation process, and show that the vortices can be moved about within the BEC by translating the positions of the laser beams. This technique can serve as a building block in future experimental techniques to create, on-demand, deterministic arrangements of few or many vortices within a BEC for precise studies of vortex dynamics and vortex interactions.

arXiv:1508.05110Physical Review AFeb 1, 201657 citations

We propose and analyze a scheme to create dark solitons and vortices in Bose-Einstein condensates. This is achieved starting from a condensate in the internal state

|a〉

and transferring the atoms to the internal state

|b〉

via a Raman transition induced by laser light. By scanning adiabatically the Raman detuning, dark solitons and vortices are created.