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Velocity Memory Effect for Polarized Gravitational Waves

Abstract : Circularly polarized gravitational sandwich waves exhibit, as do their linearly polarized counterparts, the Velocity Memory Effect: freely falling test particles in the flat after-zone fly apart along straight lines with constant velocity. In the inside zone their trajectories combine oscillatory and rotational motions in a complicated way. For circularly polarized periodic gravitational waves some trajectories remain bounded, while others spiral outward. These waves admit an additional "screw" isometry beyond the usual five. The consequences of this extra symmetry are explored.
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Submitted on : Tuesday, March 27, 2018 - 7:53:54 AM
Last modification on : Wednesday, May 27, 2020 - 10:13:22 PM

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P.M. Zhang, C. Duval, G.W. Gibbons, P.A. Horvathy. Velocity Memory Effect for Polarized Gravitational Waves. JCAP, 2018, 05, pp.030. ⟨10.1088/1475-7516/2018/05/030⟩. ⟨hal-01744043⟩



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