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Space gravitational wave detection: Progress and outlook

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arxiv 2409.00927 v1 pith:E3KZSHK4 submitted 2024-09-02 gr-qc astro-ph.IMphysics.ins-det

Wei-Tou Ni This is my paper · ORCID
classification gr-qcastro-ph.IMphysics.ins-det
keywords gravitationalwavedetectionwavesdopplerfrequencytrackingchanges
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Space-based gravitational wave detection is based on the astrodynamical equations derived from gravitational theory to detect changes in distance between spacecraft/celestial bodies and/or their state changes caused by gravitational waves. The fundamental method involves using electromagnetic waves (including radio waves, microwaves, light waves, X-rays, gamma rays, etc.) for Doppler tracking and comparing to the stable frequency standards (sources) at both the transmitting and receiving ends. Examples include microwave Doppler tracking, optical clock gravitational wave detection, atom interferometry gravitational wave detection, and laser interferometry gravitational wave detection. If the frequency sources at both ends are not sufficiently stable, a generalized dual-path Michelson interferometer based on Doppler tracking combinations is needed. Currently, the main space-based gravitational wave detectors under construction or planning are laser interferometers, which cover medium frequency (0.1-10 Hz) and low-frequency (millihertz 0.1-100 mHz and microhertz 0.1-100 {\mu}Hz) gravitational wave detection bands. This article reviews the current status and prospects of these gravitational wave detection methods.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Gravitational radiations from periodic orbits around a black hole in the effective field theory extension of general relativity

    gr-qc 2025-12 unverdicted novelty 5.0 of 10

    Periodic orbits around EFTGR black holes produce gravitational waveforms whose substructures increase in complexity with higher zoom numbers.

  2. Intrinsic Torsion, Extrinsic Torsion, and the Hubble Parameter

    gr-qc 2024-12 conditional novelty 5.0 of 10

    The second fundamental form of a spatial slice in a torsional spacetime is a sum of the Hubble term and an extrinsic torsion term, producing a negative bias in Hubble estimates when torsion is neglected.

  3. Gravitational wave signatures of magnetized Ernst black hole

    gr-qc 2026-07 conditional novelty 4.0 of 10

    Magnetic fields in the Ernst black-hole spacetime alter zoom-whirl EMRI waveforms, spectra, and characteristic strain in ways the authors claim LISA-class detectors could probe.

  4. Transportable Optical Lattice Clocks and General Relativity

    gr-qc 2025-02 accept novelty 2.0 of 10

    The paper reviews optical lattice clock technology and reports ground-based gravitational redshift measurements with alpha uncertainties down to 9.1e-5, consistent with general relativity.

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