High-resolution interference patterns of dark-bright solitons with positive mass

Matter-wave soliton interferometry has been identified as a promising candidate for precise measurements and has been extensively investigated both theoretically and experimentally. We propose an interferometer based on the recently reported dark-bright solitons with positive effective mass, which exhibits high-resolution interference patterns. The fringes are much broader than the healing length, facilitating direct probing. Moreover, the self-interference effect is observed, so that experimental manipulations can be applied to a single soliton to achieve interferometry. These results present a novel approach to designing soliton interferometers based on dark-bright solitons, which has the potential to pave the way for future precise measurements of magnetic fields, gravity, and other physical quantities.