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The issue of the gauge invariance of gravitational waves arises if they are produced in the early universe at second-order in perturbation theory. We address it by dividing the discussion… Click to show full abstract
The issue of the gauge invariance of gravitational waves arises if they are produced in the early universe at second-order in perturbation theory. We address it by dividing the discussion about the gauge invariance in three parts: the production of gravitational waves, their propagation in the real universe, and their measurement.
Keywords:
gauge invariance;
invariance cosmological;
gravitational waves;
cosmology;
cosmological gravitational
Journal Title: Journal of Cosmology and Astroparticle Physics
Year Published: 2020
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Journal Title: Journal of Cosmology and Astroparticle Physics
Year Published: 2020
Link to full text (if available)
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recommendations!