# Polarized backgrounds of relic gravitons

@article{Giovannini2019PolarizedBO, title={Polarized backgrounds of relic gravitons}, author={Massimo Giovannini}, journal={Physical Review D}, year={2019} }

The polarizations of the tensor modes of the geometry evolving in cosmological backgrounds are treated as the components of a bispinor whose dynamics follows from an appropriate gauge-invariant action. This novel framework bears a close analogy with the (optical) Jones calculus and leads to a compact classification of the various interactions able to polarize the relic gravitons.

## 3 Citations

### Effective energy density of relic gravitons

- PhysicsPhysical Review D
- 2019

The energy density, the pressure and the anisotropic stress of the relic gravitons do not have a unique gauge-invariant and frame-invariant expression since the equivalence principle ultimately…

### Flat spectra of cosmic gravitons in the nHz and audio bands

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2022

The spectra of the relic gravitons are customarily normalized in the low-frequency domain where the signal of the concordance paradigm is expected to peak and this is why their contribution to the…

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