A Compact Atom Interferometer for Future Space Missions

作者：Sorrentino Fiodor; Bongs Kai; Bouyer Philippe; Cacciapuoti Luigi; de Angelis Marella; Dittus Hansjoerg; Ertmer Wolfgang; Giorgini A; Hartwig J; Hauth Matthias; Herrmann Sven; Inguscio Massimo; Kajari Endre; Koenemann Thorben T; Laemmerzahl Claus; Landragin Arnaud; Modugno Giovanni; dos Santos Frank Pereira; Peters Achmin; Prevedelli Marco; Rasel Ernst M; Schleich Wolfgang P; Schmidt Malte; Senger Alexander; Sengstock Klaus; Stern Guillaume; Tino Guglielmo Maria^*

来源：Microgravity Science and Technology, 2010, 22(4): 551-561.

DOI：10.1007/s12217-010-9240-7

• Atom interferometry
• Inertial sensors

Atom interferometry represents a quantum leap in the technology for the ultra-precise monitoring of accelerations and rotations and, therefore, for the science that relies on these quantities. These sensors evolved from a new kind of optics based on matter-waves rather than light-waves and might result in an advancement of the fundamental detection limits by several orders of magnitude. This paper describes the current status of the Space Atom Interferometer project (SAI), funded by the European Space Agency. In a multi-pronged approach, SAI aims to investigate both experimentally and theoretically the various aspects of placing atom interferometers in space: the equipment needs, the realistically expected performance limits and potential scientific applications in a micro-gravity environment considering all aspects of quantum, relativistic and metrological sciences. A drop-tower compatible atom interferometry acceleration sensor prototype has been designed, and the manufacturing of its subsystems has been started. A compact modular laser system for cooling and trapping rubidium atoms has been assembled. A compact Raman laser module, featuring outstandingly low phase noise, has been realized. Possible schemes to implement coherent atomic sources in the atom interferometer have been experimentally demonstrated.

• 出版日期2010-10