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

Autor: Halperin, E. J., Bohn, J. L.
Rok vydání: 2020
Předmět:
Zdroj: Phys. Rev. Research 2, 043256 (2020)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevResearch.2.043256
Popis: 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.
Databáze: arXiv