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arXiv quant-ph/0604022quant-ph
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Mach-Zehnder原子干涉仪中的振动相位噪声

Vibration induced phase noise in Mach-Zehnder atom interferometers

Alain Miffre, Marion Jacquey, Matthias Büchner, Gérard Trénec, Jacques Vigué

摘要:

原子干涉仪的高惯性灵敏度已被用于建造加速度计和陀螺仪,但这种灵敏度使这些干涉仪对实验室地震噪声非常敏感。这种地震噪声引起相位噪声,该相位噪声大到足以在许多情况下降低条纹可见度。我们在这里开发的马赫-曾德尔原子干涉仪的情况下,这种相位噪声的模型计算,我们将此模型应用到我们的热锂干涉仪。因此,我们能够解释所观察到的条纹可见度与衍射级的依赖关系。在本文中开发的动力学模型应该是非常有用的,以进一步减少原子干涉仪中的相位噪声,这种减少应该打开的方式来改进干涉仪。

英文摘要:

The high inertial sensitivity of atom interferometers has been used to build accelerometers and gyrometers but this sensitivity makes these interferometers very sensitive to the laboratory seismic noise. This seismic noise induces a phase noise which is large enough to reduce the fringe visibility in many cases. We develop here a model calculation of this phase noise in the case of Mach-Zehnder atom interferometers and we apply this model to our thermal lithium interferometer. We are thus able to explain the observed dependence of the fringe visibility with the diffraction order. The dynamical model developed in the present paper should be very useful to further reduce this phase noise in atom interferometers and this reduction should open the way to improved interferometers.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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