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تسجيل مستخدم جديدOn the Gauge Invariance of Cosmological Gravitational Waves
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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 about the gauge invariance in three parts: the production of gravitational waves, their propagation in the real universe, and their measurement.
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