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Scalar induced gravitational waves in symmetric teleparallel gravity with a parity-violating term

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arxiv 2307.00330 v2 pith:XORC6D6R submitted 2023-07-01 gr-qc

Fengge Zhang , Jia-Xi Feng , Xian Gao This is my paper · ORCID
classification gr-qc
keywords sigwsgravitationalparity-violatingtermgravitysymmetricteleparallelwaves
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Gravitational waves (GWs) are useful to test gravitational theories and to probe the physics in the early universe. In this paper, we investigate the scalar induced gravitational waves (SIGWs) in symmetric teleparallel gravity with a parity-violating term. The presence of the parity-violating term leads to the velocity birefringence effect of the SIGWs. However, after taking into account the observational constraints on the speed of GWs, the contribution from the parity-violating term to SIGWs is negligible. Nevertheless, the contribution to SIGWs from the perturbations of the connection can be significant, and results in a multipeak structure in the energy density of SIGWs. This feature makes the symmetric teleparallel gravity distinguishable from the general relativity.

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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. Correlated parity violation in gravity and electromagnetism from five-dimensional spacetime

    gr-qc 2026-08 conditional novelty 7.0 of 10

    A five-dimensional teleparallel Kaluza-Klein action produces a single parameter-free prediction: the electromagnetic helicity dispersion shift is exactly six times the gravitational one.

  2. Parity-violating spatially covariant gravity at total derivative order $d=5$

    gr-qc 2026-07 conditional novelty 6.0 of 10

    At total derivative order five, parity-violating spatially covariant gravity has exactly 59 independent monomials, and their tensor-perturbation response is controlled by four coefficient combinations producing helici...

  3. Circularly polarized gravitational waves from parity-violating scalar-tensor theory

    gr-qc 2026-02 conditional novelty 6.0 of 10

    In the "Qi-Xiu" parity-violating scalar-tensor theory, the L3 and L4 interactions leave linear gravitational-wave propagation GR-like but still generate circularly polarized scalar-induced gravitational waves.

  4. Neutron stars in $f(Q) = Q +\xi Q^2$ gravity

    gr-qc 2026-07 conditional novelty 4.5 of 10

    In f(Q)=Q+ξQ² gravity with realistic EOSs, negative ξ increases neutron-star maximum masses while positive ξ decreases them, with exterior spacetime remaining Schwarzschild.

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