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Testing general relativity with atom interferometry.

Savas Dimopoulos1, Peter W Graham, Jason M Hogan

  • 1Department of Physics, Stanford University, Stanford, California 94305, USA.

Physical Review Letters
|May 16, 2007
PubMed
Summary
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Atom interferometry will enable laboratory tests of general relativity with unprecedented precision, surpassing astrophysical observations. This experiment will significantly advance our understanding of fundamental physics and gravity.

Area of Science:

  • * Physics
  • * Astronomy
  • * Metrology

Background:

  • * Atom interferometry offers unprecedented precision for fundamental physics tests.
  • * Astrophysical observations currently provide the most precise tests of general relativity.
  • * Laboratory experiments are needed to complement and surpass astrophysical measurements.

Purpose of the Study:

  • * To propose a novel atom interferometry experiment for testing general relativity.
  • * To achieve unprecedented precision in testing the equivalence principle.
  • * To probe subtle general relativistic effects inaccessible to current astrophysical methods.

Main Methods:

  • * Utilizing high-precision atom interferometry.
  • * Designing experiments to isolate specific general relativistic phenomena.

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  • * Analyzing data to quantify deviations from established theories.

    • Main Results:

    • * Proposed experiment will test the equivalence principle to 1 part in 10^15, 300 times current limits.
    • * Future tests aim for 1 part in 10^17 precision.
    • * Will probe nonlinear three-graviton coupling and gravity of kinetic energy.

    Conclusions:

    • * Laboratory atom interferometry will rival or exceed astrophysical precision for general relativity tests.
    • * This approach allows for isolating and precisely measuring relativistic effects.
    • * Paves the way for new discoveries in fundamental physics.