CASPA: Cold Atom Space Payload

CASPA：冷原子空间有效载荷

• 批准号: EP/R002525/1
• 负责人: Kai Bongs
• 金额: $ 39.7万
• 依托单位: University of Birmingham
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2017
• 资助国家: 英国
• 起止时间: 2017 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FR002525%2F1
• 关键词: CASPA; Cold; Atom; Space; Payload

New developments in Quantum Technology have resulted in the ability to cool atoms close to absolute zero using lasers. At these temperatures, laboratory experiments have shown that these "cold atoms" can be used as ultra-sensitive sensors for measuring gravity. CASPA will translate leading UK science into commercial products for space and other markets. It will take the technology out of the laboratory and build it into a small satellite payload that is capable of producing "cold atoms" in space. Demonstrating this new technology in space is a vital first step towards realising real instruments that are capable of mapping tiny changes in the strength of gravity across the surface of the earth. The extreme sensitivity brought by "cold atom" sensors will provide the ability to finely monitor the movement of mass within earth systems. This has multiple applications including more accurate monitoring of changes in polar ice mass, ocean currents and sea level. Higher resolution data will lead to the ability to monitor smaller water sources and new underground natural resources which are currently not detectable. Similar technology will also be used for deep space navigation and for providing higher precision timing sources in space.

量子技术的新发展使使用激光器接近绝对零的原子的能力。在这些温度下，实验室实验表明，这些“冷原子”可以用作测量重力的超敏感传感器。 CASPA将把英国领先的科学转化为空间和其他市场的商业产品。它将将技术从实验室中淘汰，并将其构建为一个能够在太空中生产“冷原子”的小卫星有效载荷。在太空中展示这项新技术是迈向实现真正的仪器的至关重要的第一步，这些仪器能够映射地球表面的重力强度的微小变化。 “冷原子”传感器带来的极端敏感性将提供可很好地监测地球系统内质量运动的能力。这具有多种应用，包括对极地冰块，洋流和海平面的变化进行更准确的监测。较高的分辨率数据将导致能够监视较小的水源和新的地下自然资源，这些自然资源目前无法检测到。类似的技术也将用于深空导航，并在空间中提供更高的精度定时源。

项目成果

Gravity sensing: cold atom trap onboard a 6U CubeSat

• DOI: 10.1007/s12567-020-00326-4
• 发表时间: 2020-08-04
• 期刊: CEAS SPACE JOURNAL
• 影响因子: 1.4
• 作者: Devani, Diviya;Maddox, Stephen;Carpenter, Lewis
• 通讯作者: Carpenter, Lewis

Taking atom interferometric quantum sensors from the laboratory to real-world applications

• DOI: 10.1038/s42254-019-0117-4
• 发表时间: 2019-12-01
• 期刊: NATURE REVIEWS PHYSICS
• 影响因子: 38.5
• 作者: Bong, Kai;Holynski, Michael;Roura, Albert
• 通讯作者: Roura, Albert