Photon-graviton scattering: A new way to detect anisotropic gravitational waves?

Understand

Gravitons are the quantum counterparts of gravitational waves in low-energy theories of gravity.

• Using Feynman rules one can compute scattering amplitudes describing the interaction between gravitons and other fields.
• Here, we consider the interaction between gravitons and photons.
• Using the quantum Boltzmann equation formalism, we derive fully general equations describing the radiation transfer of photon polarization, due to the forward scattering with gravitons.