Joint Quantum Institute, University of Maryland, College Park, MD 20742, USA.
Sci Rep. 2013;3:1034. doi: 10.1038/srep01034. Epub 2013 Jan 7.
Using a thermal sample of laser-cooled rubidium atoms, we have constructed a neutral-atom circuit analogous to an electronic capacitor discharged through a resistor. The atoms are confined using what we call a free-space atom chip, an optical dipole trap created using a generalized phase-contrast imaging technique. We have also calculated theoretical values for the capacitance and resistance, which agree with our experiments, as well as theoretical value for an atomic analog of electrical inductance. We show that atomic capacitance is analogous to the quantum capacitance, the atomic resistance is analogous to the ballistic, or Sharvin resistance, and the atomic inductance is analogous to kinetic inductance.
使用激光冷却的铷原子的热样本，我们构建了一个类似于通过电阻放电的电子电容器的中性原子电路。原子被限制在我们所谓的自由空间原子芯片中，这是使用广义相衬成像技术创建的光学偶极阱。我们还计算了电容和电阻的理论值，这些值与我们的实验相符，以及电感性的原子模拟的理论值。我们表明，原子电容类似于量子电容，原子电阻类似于弹道或 Sharvin 电阻，原子电感类似于动力学电感。
