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Gravitational wave detectors based on matter wave interferometers (MIGO) are no better than laser interferometers (LIGO)

Albert Roura1, Dieter R. Brill1, B. L. Hu1, Charles W. Misner1, and William D. Phillips1,2

  • 1Department of Physics, University of Maryland, College Park, Maryland 20742-4111, USA
  • 2National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8424, USA

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Phys. Rev. D 73, 084018 – Published 19 April, 2006

DOI: https://doi.org/10.1103/PhysRevD.73.084018

Abstract

We show that a recent claim that matter wave interferometers have a much higher sensitivity than laser interferometers for a comparable physical setup is unfounded. We point out where the mistake in the earlier analysis is made. We also disprove the claim that only a description based on the geodesic deviation equation can produce the correct physical result. The equations for the quantum dynamics of nonrelativistic massive particles in a linearly perturbed spacetime derived here are useful for treating a wider class of related physical problems. A general discussion on the use of atom interferometers for the detection of gravitational waves is also provided.

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Phys. Rev. D 73, 084018– Published 19 April, 2006
  • Received 13 June 2005

© 2006 American Physical Society

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