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arXiv · 2002.10491

Quench-produced solitons in a box-trapped Bose-Einstein condensate

E. J. Halperin·J. L. Bohn
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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.

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E. J. Halperin, J. L. Bohn. 2020-02-24. Quench-produced solitons in a box-trapped Bose-Einstein condensate. https://doi.org/10.1103/physrevresearch.2.043256

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