Department of Physics, Ben-Gurion University of the Negev, Be'er Sheva 84105, Israel.
Research Laboratory of Electronics, MIT-Harvard Center for Ultracold Atoms, Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
Phys Rev Lett. 2019 Aug 23;123(8):083601. doi: 10.1103/PhysRevLett.123.083601.
We present a unique matter-wave interferometer whose phase scales with the cube of the time the atom spends in the interferometer. Our scheme is based on a full-loop Stern-Gerlach interferometer incorporating four magnetic field gradient pulses to create a state-dependent force. In contrast to typical atom interferometers that make use of laser light for the splitting and recombination of the wave packets, this realization uses no light and can therefore serve as a high-precision surface probe at very close distances.
我们提出了一种独特的物质波干涉仪，其相位与原子在干涉仪中花费的时间的立方成正比。我们的方案基于一个全环路斯特恩-格拉赫干涉仪，其中包含四个磁场梯度脉冲，以产生依赖于状态的力。与典型的利用激光光来分裂和重组波包的原子干涉仪不同，这种实现方法不使用光，因此可以在非常近的距离用作高精度的表面探针。
