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Cosmological Vorticity in a Gravity with Quadratic Order Curvature Couplings

J. Hwang·H. Noh
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Abstract

We analyse the evolution of the rotational type cosmological perturbation in a gravity with general quadratic order gravitational coupling terms. The result is expressed independently of the generalized nature of the gravity theory, and is simply interpreted as a conservation of the angular momentum.

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J. Hwang, H. Noh. 1997-10-07. Cosmological Vorticity in a Gravity with Quadratic Order Curvature Couplings. https://doi.org/10.1103/physrevd.57.2617

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