Quench-produced solitons in a box-trapped Bose-Einstein condensate
Quantum Gases
2020-11-25 v1
Abstract
We describe a protocol to prepare solitons in a quasi-1d box-trapped Bose-Einstein condensate using only a quench of the isotropic s-wave scattering length. A quench to exactly four times the initial 1d coupling strength creates one soliton at each boundary of the box, which then propagate in a uniform background density and collide with one another. No nonsolotonic excitations are created during the quench. The procedure is robust against imperfections in the scattering length ramp rate and a mismatch of the final scattering length.
Cite
@article{arxiv.2002.10491,
title = {Quench-produced solitons in a box-trapped Bose-Einstein condensate},
author = {E. J. Halperin and J. L. Bohn},
journal= {arXiv preprint arXiv:2002.10491},
year = {2020}
}