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Atomic Interferometry

Einstein predicted gravity waves in his general theory of relativity, but to date these ripples in the fabric of space-time have never been observed. Now a scientific research technique called Atomic Interferometry is trying to re-write the canon. In conjunction with researchers at Stanford University, scientists at NASA Goddard are developing a system to measure the faint gravitational vibrations generated by movement of massive objects in the universe. The scientific payoff could be important, helping better clarify key issues in our understanding of cosmology. But application payoff could be substantial, too, with the potential to develop profound advances in fields like geolocation and timekeeping. In this video we examine how the system would work, and the scientific underpinnings of the research effort.
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Atomic Interferometry    Atomic Interferometry
Duration: 2.5 minutes
Available formats:
  1280x720 (59.94 fps) QT         2 GB
  1280x720 (29.97 fps) WMV         77 MB
  960x540 (29.97 fps) MPEG-4   68 MB
  640x360 (29.97 fps) MPEG-4   27 MB
  320x240 (29.97 fps) MPEG-4   14 MB
  1280x720 (59.94 fps) QT         2 GB
  1280x720 (29.97 fps) QT         87 MB
  640x360 (29.97 fps) QT         65 MB
  960x540 (29.97 fps) WEBM         33 MB
  1024x576   JPEG         30 KB
  320x180     PNG           32 KB
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Animation Number:11093
Video Editor:Michael Starobin (HTSI)
Interviewee:Babak Siaf (NASA/GSFC)
Narrator:Michael Starobin (HTSI)
Producer:Michael Starobin (HTSI)
Project Support:Swarupa Nune (Vantage)
Videographer:Rob Andreoli (AIMM)
Please give credit for this item to:
NASA/Goddard Space Flight Center
SVS >> Laser
GCMD >> Earth Science >> Atmosphere >> Atmospheric Pressure >> Gravity Wave
DLESE >> Narrated
SVS >> Atom
NASA Science >> Universe
SVS >> Atomic Interferometry
SVS >> Laser Interferometer Gravitational-Wave Observatory (LIGO)
SVS >> Relativity

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Many of our multimedia items use the GCMD keywords. These keywords can be found on the Internet with the following citation:
Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version logo - the U.S. Government's official Web portal. + Privacy Policy and Important Notices
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