Matter-wave soliton interferometer based on a nonlinear splitter
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Publication:5854976
DOI10.1088/1367-2630/18/2/025020zbMATH Open1456.35074arXiv1601.07889OpenAlexW2270809832WikidataQ60316836 ScholiaQ60316836MaRDI QIDQ5854976
Author name not available (Why is that?)
Publication date: 12 March 2021
Published in: (Search for Journal in Brave)
Abstract: We elaborate a model of the interferometer which, unlike previously studied ones, uses a local (delta-functional) nonlinear repulsive potential, embedded into a harmonic-oscillator trapping potential, as the splitter for the incident soliton. An estimate demonstrates that this setting may be implemented by means of the localized Feshbach resonance controlled by a focused laser beam. The same system may be realized as a nonlinear waveguide in optics. Subsequent analysis produces an exact solution for scattering of a plane wave in the linear medium on the delta-functional nonlinear repulsive potential, and an approximate solution for splitting of the incident soliton when the ambient medium is nonlinear. The most essential result, obtained by means of systematic simulations, is that the use of the nonlinear splitter provides the sensitivity of the soliton-based interferometer to the target, inserted into one of its arms, which is much higher than the sensitivity provided by the usual linear splitter.
Full work available at URL: https://arxiv.org/abs/1601.07889
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