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arXiv · 1510.01566

Lensing signals from Spin-2 perturbations

Julian Adamek·Ruth Durrer·Vittorio Tansella
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Abstract

We compute the angular power spectra of the E-type and B-type lensing potentials for gravitational waves from inflation and for tensor perturbations induced by scalar perturbations. We derive the tensor-lensed CMB power spectra for both cases. We also apply our formalism to determine the linear lensing potential for a Bianchi I spacetime with small anisotropy.

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Julian Adamek, Ruth Durrer, Vittorio Tansella. 2016-01-15. Lensing signals from Spin-2 perturbations. https://doi.org/10.1088/1475-7516%2F2016%2F01%2F024

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