Symmetry tests using clocks in space

Clock-comparison experiments conducted in space can provide access to many unmeasured coefficients for Lorentz and CPT violation. The orbital configuration of a satellite platform and the relatively large velocities attainable in a deep-space mission would permit a broad range of tests with Planck-scale sensitivity.

" Probing Lorentz and CPT Violation with Space-based Experiments," Physical Review D 68 125008 (2003)

"Clock-Comparison Tests of Lorentz and CPT Symmetry in Space," Physical Review Letters 88, 090801 (2002).

Popular articles citing this work:

• Nature, April 25, 2002, "Relativity:Testing times in space"
• United Press International, March 2, 2002. "Space clocks test 'super theory'"
• International Science News web site, UniSci, March 1, 2002. "Space Clocks To Spot Lorentz Invariance Violations"
• American Institute of Physics News, Update #578, February 27, 2002. "Using Clocks in Space to Search for New Physics"
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Published work on Lorentz tests in space

Neil Russell