Horne R A, Sackett C A
NASA Langley Research Center, Revolutionary Aviation Technologies Branch, Mail Stop 207, Hampton, Virginia 23681-2199, USA.
Department of Physics, University of Virginia, 382 McCormick Road, Charlottesville, Virginia 22904-4714, USA.
Rev Sci Instrum. 2017 Jan;88(1):013102. doi: 10.1063/1.4973123.
We present a variant of the time-orbiting potential trap suitable for Bose-Einstein condensate atom interferometers, which provides weak, cylindrically symmetric confinement as well as support for the atoms against gravity. This trapping configuration is well-suited for the implementation of a compact atom interferometer based gyroscope. The trap is made up of six coils, which were produced using photolithographic techniques and take up a modest volume of approximately 1 cubic inch inside a vacuum chamber. The trapping frequencies and thermal characteristics of the trap are presented, showing cylindrical symmetry and scalability of the trapping frequencies from 1 Hz to 8 Hz in the symmetry plane.
我们展示了一种适用于玻色-爱因斯坦凝聚原子干涉仪的时间轨道势阱变体，它提供弱的、圆柱对称的约束，同时支撑原子以抵抗重力。这种捕获配置非常适合基于紧凑型原子干涉仪的陀螺仪的实现。该陷阱由六个线圈组成，这些线圈是使用光刻技术制造的，在真空室内占据约1立方英寸的适度体积。给出了陷阱的捕获频率和热特性，显示出圆柱对称性以及在对称平面内捕获频率从1赫兹到8赫兹的可扩展性。
