604 citations · 4.7k across the 66 of their papers we have counts for
4 papers · 1 filter
Looking for MACHOs in the Spectra of Fast Radio Bursts
Andrey Katz, Joachim Kopp, Sergey Sibiryakov +1
We explore a novel search strategy for dark matter in the form of massive compact halo objects (MACHOs) such as primordial black holes or dense mini-halos in the mass range from $1…
Secular effects of Ultralight Dark Matter on Binary Pulsars
Diego Blas, Diana López Nacir, Sergey Sibiryakov
Dark matter (DM) can consist of very light bosons behaving as a classical scalar field that experiences coherent oscillations. The presence of this DM field would perturb the dynam…
Time-sliced perturbation theory with primordial non-Gaussianity and effects of large bulk flows on inflationary oscillating features
Anagha Vasudevan, Mikhail M. Ivanov, Sergey Sibiryakov +1
We extend the formalism of time-sliced perturbation theory (TSPT) for cosmological large-scale structure to include non-Gaussian initial conditions. We show that in such a case the…
Towards the renormalization group flow of Horava gravity in dimensions
Andrei O. Barvinsky, Mario Herrero-Valea, Sergey M. Sibiryakov
We compute the renormalization group running of the Newton constant and the parameter in -dimensional projectable Horava gravity. We use the background field method expa…