Soliton Interferometry with Very Narrow Barriers Obtained from Spatially Dependent Dressed States

Grimshaw, Callum L.; Billam, Thomas P.; Gardiner, Simon A.

Abstract

Bright solitons in atomic Bose-Einstein condensates are strong candidates for high precision matter-wave interferometry, as their inherent stability against dispersion supports long interrogation times. An analog to a beam splitter is then a narrow potential barrier. A very narrow barrier is desirable for interferometric purposes, but in a typical realization using a blue-detuned optical dipole potential, the width is limited by the laser wavelength. We investigate a soliton interferometry scheme using the geometric scalar potential experienced by atoms in a spatially dependent dark state to overcome this limit. We propose a possible implementation and numerically probe the effects of deviations from the ideal configuration.

Citation

Grimshaw, C. L., Billam, T. P., & Gardiner, S. A. (2022). Soliton Interferometry with Very Narrow Barriers Obtained from Spatially Dependent Dressed States. Physical Review Letters, 129(4), Article 040401. https://doi.org/10.1103/physrevlett.129.040401

• Journal Article Type: Article
• Acceptance Date: May 23, 2022
• Online Publication Date: Jul 19, 2022
• Publication Date: Jul 22, 2022
• Deposit Date: Jul 20, 2022
• Publicly Available Date: Jul 20, 2022
• Journal: Physical Review Letters
• Print ISSN: 0031-9007
• Electronic ISSN: 1079-7114
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 129
• Issue: 4
• Article Number: 040401
• DOI: https://doi.org/10.1103/physrevlett.129.040401
• Keywords: Bose-Einstein condensates, cold atoms, matter waves, synthetic gauge fields
• Public URL: https://durham-repository.worktribe.com/output/1197149
• Related Public URLs: https://arxiv.org/abs/2104.11511