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1. 发明授权

US09791593B2 Matter-wave gravimeter with microwave separation at the magic field 有权
公开(公告)号：US09791593B2
公开(公告)日：2017-10-17
申请号：US14704556
申请日：2015-05-05
申请人： THALES
发明人： Mahdi Ammar , Sylvain Schwartz , Landry Huet
IPC分类号： G01V7/02 , G01V7/00
CPC分类号： G01V7/02 , G01V7/00
摘要： The general field of the invention is that of matter-wave gravimeters. The gravimeter according to the invention comprises at least: means for generating, for capturing and for cooling a cloud of ultra-cold atoms; means of transferring the atoms into a superposition, with equal weights, of a first internal electronic state called state |1>) and of a second internal electronic state called state |2> comprising the application of at least a first microwave field and of a radiofrequency field; means for separating the atoms into two wave packets for a given period of time under the effect of at least a second microwave field, the said separation leading to a phase-shift associated with the local gravitational field; calibration means allowing a “magic” magnetostatic field to be determined for which the difference in energy between the first internal electronic state and the second internal electronic state is independent, to a first order, of the fluctuations of the magnetostatic field.

2. 发明申请

US20150331142A1 MATTER-WAVE GRAVIMETER WITH MICROWAVE SEPARATION AT THE MAGIC FIELD 有权
标题翻译：具有在魔术场上的微波分离的马达波纹光栅
公开(公告)号：US20150331142A1
公开(公告)日：2015-11-19
申请号：US14704556
申请日：2015-05-05
申请人： THALES
发明人： Mahdi Ammar , Sylvain Schwartz , Landry Huet
IPC分类号： G01V7/02
CPC分类号： G01V7/02 , G01V7/00
摘要： The general field of the invention is that of matter-wave gravimeters. The gravimeter according to the invention comprises at least: means for generating, for capturing and for cooling a cloud of ultra-cold atoms; means of transferring the atoms into a superposition, with equal weights, of a first internal electronic state called state |1>) and of a second internal electronic state called state |2> comprising the application of at least a first microwave field and of a radiofrequency field; means for separating the atoms into two wave packets for a given period of time under the effect of at least a second microwave field, the said separation leading to a phase-shift associated with the local gravitational field; calibration means allowing a “magic” magnetostatic field to be determined for which the difference in energy between the first internal electronic state and the second internal electronic state is independent, to a first order, of the fluctuations of the magnetostatic field.
摘要翻译：本发明的一般领域是物波重力仪。根据本发明的重力计至少包括：用于产生用于捕获和冷却超冷原子云的装置; 将原子转移成称重状态的第一内部电子状态称为状态| 1>的叠加和称为状态| 2>的第二内部电子状态的装置，包括至少应用第一微波场和射频场用于在至少第二微波场的作用下将原子分离为两个波包达给定时间段的装置，所述分离导致与局部重力场相关联的相移; 校准装置允许确定第一内部电子状态和第二内部电子状态之间的能量差异与静磁场的波动的第一级独立的“魔术”静磁场。

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