454 citations · 5.5k across the 66 of their papers we have counts for
6 papers · 1 filter
Cosmology with a light ghost
Mikhail M. Ivanov, Anna A. Tokareva
We study the creation and evolution of cosmological perturbations in renormalizable quadratic gravity with a Weyl term. We adopt a prescription that implies the stability of the va…
Systematic treatment of non-linear effects in Baryon Acoustic Oscillations
Mikhail M. Ivanov
In this contribution we will discuss the non-linear effects in the baryon acoustic oscillations and present a systematic and controllable way to account for them within time-sliced…
Constraining the production of cosmic rays by pulsars
Mikhail M. Ivanov, Maxim S. Pshirkov, Grigory I. Rubtsov
One of the possible sources of hadronic cosmic rays (CRs) are newborn pulsars. If this is indeed the case, they should feature diffusive gamma-ray halos produced by interactions of…
Cosmological constraints on Lorentz Invariance violation in gravity and dark matter
Mikhail M. Ivanov
This brief contribution is devoted to phenomenological consequences of deviations from Lorentz invariance in gravity and dark matter. We will discuss main effects on cosmological o…
Time-Sliced Perturbation Theory II: Baryon Acoustic Oscillations and Infrared Resummation
Diego Blas, Mathias Garny, Mikhail M. Ivanov +1
We use time-sliced perturbation theory (TSPT) to give an accurate description of the infrared non-linear effects affecting the baryonic acoustic oscillations (BAO) present in the d…
On constraining the speed of gravitational waves following GW150914
Diego Blas, Mikhail M. Ivanov, Ignacy Sawicki +1
We point out that the observed time delay between the detection of the signal at the Hanford and Livingston LIGO sites from the gravitational wave event GW150914 places an upper bo…