这一部分是关于从干涉仪(interferometer)到相关系数(quantum coherence function)的介绍,因为笔者最近在上量子光学课,所以做这么一个note分享给大家。主要参考是Scully的Chapter 4. 干涉… Mint打开知乎App 在「我的页」右上角打开扫一扫 其他扫码方式:微信 下载知乎App 开通机构号 无障碍模式 验证码登录 密码登录 中国...
interferometer, applying a second pulse of electromagnetic radiation to both beams of atoms a time T later with characteristics substantially similar to the first pulse and in which the product of the Rabi frequency and T now must equal π (versus π/2 in the first pulse), whereby the states...
Finally, in 2005, after several unsuccessful attempts, a Michelson atom interferometer has been operated on a chip [52]. IV. MAIN TYPES OF ATOM INTERFEROMETERS A. Polarization interferometers versus separated beam interferometers With light waves [53], a distinction is classically made between ...
Fig. 6. Illustration of the effect of gravity in an atom interferometer. The fringes fall by a distance gL2/v2, where v is the atomic velocity. The dashed line shows the interference fringes with g = 0. (25)h=ut−12gt2=−g(Lv)2 where v is the particle’s longitudinal velocity ...
We also provide an improved theoretical description of signals generated by both interferometer configurations that accurately models experimental results. With this theory, absolute measurements of B gradients at the level of 3脳10G/cm are achieved. Finally, we contrast the suitability of the two- ...
The interaction leads to a consecutive splitting and recombination of the atomic wavefunction, forming two closed atom interferometer ports, highlighted by blue circles in Fig. 1a. For a single atom and the clock laser frequency close to resonance, the excitation probability Pe of both interferometer...
Inertial sensors based on cold atoms have great potential for navigation, geodesy, or fundamental physics. Similar to the Sagnac effect, their sensitivity increases with the space-time area enclosed by the interferometer. Here, we introduce twin-lattice
An atom interferometer that does not have to be cooled to cryognenic temperatures has been created by physicists in the US. The new device instead employs a cell of warm vapour. The absence of bulky cooling equipment means the device could potentially feature in simple atomic sensors designed ...
We use the optical fields in a hollow-core photonic crystal fiber to spatially split, reflect, and recombine a coherent superposition state of free-falling 85Rb atoms to realize an inertia-sensitive atom interferometer. The interferometer operates over a diffraction-free distance, and the contrasts ...
the time between the light pulses was 1 or 2 ms and, hence short enough, that the wave packets largely overlap at the exit ports giving rise to interference fringes modulated approximately along thex-direction. Therefore, the experimental arrangement resembles a shearing interferometer probing the...