Wolfram Ratzinger

activity

20182026

most citedPrimordial gravitational waves in the nano-Hertz regime and PTA data -- towards solving the GW inverse problem

116 citations · 540 across the 21 of their papers we have counts for

collaborators

Showing 2022Show all

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hep-ph2022★ 30 cited

One $μ$ to rule them all: CMB spectral distortions can probe domain walls, cosmic strings and low scale phase transitions

Nicklas Ramberg, Wolfram Ratzinger, Pedro Schwaller

We present a new probe of purely gravitationally coupled sectors with large anisotropies. These anisotropies are damped via gravitational interactions with the baryon-photon fluid,…

One μ to rule them all: CMB spectral distortions can probe domain walls, cosmic strings and low scale phase transitions

One $μ$ to rule them all: CMB spectral distortions can probe domain walls, cosmic strings and low scale phase transitions