Design of a dual species atom interferometer for space

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• 作者：Thilo Schuldt ; Christian Schubert ; Markus Krutzik…
• 关键词：Atom interferometer ; Space technology ; Equivalence principle test ; Bose ; Einstein condensate
• 刊名：Experimental Astronomy
• 出版年：2015
• 出版时间：June 2015
• 年：2015
• 卷：39
• 期：2
• 页码：167-206
• 全文大小：4,478 KB
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• 作者单位：Thilo Schuldt (1)
  Christian Schubert (2)
  Markus Krutzik (3)
  Lluis Gesa Bote (4)
  Naceur Gaaloul (2)
  Jonas Hartwig (2)
  Holger Ahlers (2)
  Waldemar Herr (2)
  Katerine Posso-Trujillo (2)
  Jan Rudolph (2)
  Stephan Seidel (2)
  Thijs Wendrich (2)
  Wolfgang Ertmer (2)
  Sven Herrmann (5)
  André Kubelka-Lange (5)
  Alexander Milke (5)
  Benny Rievers (5)
  Emanuele Rocco (6)
  Andrew Hinton (6)
  Kai Bongs (6)
  Markus Oswald (7)
  Matthias Franz (7)
  Matthias Hauth (3)
  Achim Peters (3)
  Ahmad Bawamia (8)
  Andreas Wicht (8)
  Baptiste Battelier (9)
  Andrea Bertoldi (9)
  Philippe Bouyer (9)
  Arnaud Landragin (10)
  Didier Massonnet (11)
  Thomas Lévèque (11)
  Andre Wenzlawski (12)
  Ortwin Hellmig (12)
  Patrick Windpassinger (12) (19)
  Klaus Sengstock (12)
  Wolf von Klitzing (13)
  Chris Chaloner (14) (20)
  David Summers (14)
  Philip Ireland (14)
  Ignacio Mateos (4)
  Carlos F. Sopuerta (4)
  Fiodor Sorrentino (15)
  Guglielmo M. Tino (15)
  Michael Williams (16)
  Christian Trenkel (16)
  Domenico Gerardi (17)
  Michael Chwalla (17)
  Johannes Burkhardt (17)
  Ulrich Johann (17)
  Astrid Heske (18)
  Eric Wille (18)
  Martin Gehler (18)
  Luigi Cacciapuoti (18)
  Norman Gürlebeck (5)
  Claus Braxmaier (1) (5)
  Ernst Rasel (2)
  
  1. Institute of Space Systems, German Aerospace Center (DLR), Robert-Hooke-Str. 7, 28359, Bremen, Germany
  2. Institut für Quantenoptik, Leibniz Universit?t Hannover, Welfengarten 1, 30167, Hannover, Germany
  3. Institut für Physik, Humboldt-Universit?t zu Berlin, Newtonstr. 15, 12489, Berlin, Germany
  4. Institut de Ciències de l’Espai (CSIC-IEEC), Campus UAB, Facultat de Ciències, 08193, Bellaterra, Spain
  5. Zentrum für angewandte Raumfahrttechnologie und Mikrogravitation (ZARM), Universit?t Bremen, Am Fallturm, 28359, Bremen, Germany
  6. School of Physics and Astronomy, University of Birmingham, Birmingham, B152TT, UK
  7. Institut für Optische Systeme, University of Applied Sciences Konstanz (HTWG), Brauneggerstr. 55, 78462, Konstanz, Germany
  8. Ferdinand-Braun-Institut, Leibniz-Institut für H?chstfrequenztechnik, Gustav-Kirchhoff-Str. 4, 12489, Berlin, Germany
  9. Laboratoire Photonique, Numérique et Nanosciences-LP2N Université Bordeaux-IOGS-CNRS: UMR 5298, Talence, France
  10. LNE-SYRTE, Observatoire de Paris, CNRS and UPMC, 61 avenue de l’observatoire, 75014, Paris, France
  11. CNES - Centre National d’études Spatiales, 18 Avenue édouard Belin, 31400, Toulouse, France
  12. Institut für Laserphysik, Universit?t Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany
  19. Johannes-Gutenberg-University Mainz, Staudingerweg 7, 55099, Mainz, Germany
  13. Institute of Electronic Structure and Laser, Foundation for Research and Technology - Hellas, Vassilika Vouton, GR-71110, Heraklion, Greece
  14. SEA House, Bristol Business Park, Coldharbour Lane, Bristol, BS16 1EJ, UK
  20. Trym Systems Ltd, 1 College Park Drive Westbury-on-Trym, Bristol, BS10 7AN, UK
  15. Dipartimento di Fisica e Astronomia and LENS, Università di Firenze - INFN, Sezione di Firenze - via G. Sansone 1, 50019, Sesto Fiorentino (Firenze), Italy
  16. Astrium Ltd, Gunnels Wood Road, Stevenage, SGI 2AS, UK
  17. Astrium GmbH - Satellites, Claude-Dornier-Str., 88090, Immenstaad, Germany
  18. ESA - European Space Agency, ESTEC, Keplerlaan 1, 2200 AG, Noordwijk, ZH, Netherlands
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Astronomy
  Statistics for Engineering, Physics, Computer Science, Chemistry and Geosciences
  
• 出版者：Springer Netherlands
• ISSN：1572-9508

文摘

Atom interferometers have a multitude of proposed applications in space including precise measurements of the Earth’s gravitational field, in navigation & ranging, and in fundamental physics such as tests of the weak equivalence principle (WEP) and gravitational wave detection. While atom interferometers are realized routinely in ground-based laboratories, current efforts aim at the development of a space compatible design optimized with respect to dimensions, weight, power consumption, mechanical robustness and radiation hardness. In this paper, we present a design of a high-sensitivity differential dual species 85Rb/87Rb atom interferometer for space, including physics package, laser system, electronics and software. The physics package comprises the atom source consisting of dispensers and a 2D magneto-optical trap (MOT), the science chamber with a 3D-MOT, a magnetic trap based on an atom chip and an optical dipole trap (ODT) used for Bose-Einstein condensate (BEC) creation and interferometry, the detection unit, the vacuum system for 10?1?mbar ultra-high vacuum generation, and the high-suppression factor magnetic shielding as well as the thermal control system. The laser system is based on a hybrid approach using fiber-based telecom components and high-power laser diode technology and includes all laser sources for 2D-MOT, 3D-MOT, ODT, interferometry and detection. Manipulation and switching of the laser beams is carried out on an optical bench using Zerodur bonding technology. The instrument consists of 9 units with an overall mass of 221?kg, an average power consumption of 608?W (814?W peak), and a volume of 470 liters which would well fit on a satellite to be launched with a Soyuz rocket, as system studies have shown.