利用超冷原子的布洛赫振荡对微米尺度的力进行灵敏测量。
Sensitive measurement of forces at the micron scale using Bloch oscillations of ultracold atoms.
作者信息
Carusotto I, Pitaevskii L, Stringari S, Modugno G, Inguscio M
机构信息
Istituto Nazionale per Fisica per la Materia BEC-CRS and Dipartimento di Fisica, Universitá di Trento, I-38050 Povo, Italy.
出版信息
Phys Rev Lett. 2005 Aug 26;95(9):093202. doi: 10.1103/PhysRevLett.95.093202. Epub 2005 Aug 25.
We show that Bloch oscillations of ultracold fermionic atoms in the periodic potential of an optical lattice can be used for a sensitive measurement of forces at the micrometer length scale, e.g., in the vicinity of a dielectric surface. In particular, the proposed approach allows us to perform a local and direct measurement of the Casimir-Polder force which is, for realistic experimental parameters, as large as 10(-4) gravity.
我们表明，超冷费米子原子在光学晶格的周期性势场中的布洛赫振荡可用于在微米长度尺度上对力进行灵敏测量，例如在电介质表面附近。特别地，所提出的方法使我们能够对卡西米尔 - 波尔德力进行局部和直接测量，对于实际的实验参数，该力可达10^(-4) 个重力加速度。
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