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arXiv · 1511.03893

Adiabatic Mach-Zehnder interferometer in dipolar spin-1 condensate

Yixiao Huang·Wei Guo·Ning-Ju Hui·Zheng-Da Hu
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Abstract

Mach-Zehnder interferometer, a powerful tool for a wide variety of measurements, has been realized with Bose-Einstein condensates in recent experiments. In this report, we propose and analyze a realizable scheme for performing a Heisenberg-limited Mach-Zehnder interferometry with dipolar spin-1 condensate. Based upon adiabatic processes of sweeping the transverse magnetic field, we demonstrate a perfect phase transition, which accomplishes the beam splitter, phase shifter and recombiner as for a Mach-Zehnder interferometer. The attractive dipolar interaction ensures the existence of a path-entangled state which enhances the phase measurement precision to the Heisenberg limit. We also discuss the spin-$1$ squeezing induced in the adiabatic passage and show that the squeezing parameter attains its minimal value near the point of saturation field.

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Yixiao Huang, Wei Guo, Ning-Ju Hui, Zheng-Da Hu. 2015-11-12. Adiabatic Mach-Zehnder interferometer in dipolar spin-1 condensate. https://arxiv.org/abs/1511.03893

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