activity
20022020
most citedLeptogenesis from first principles in the resonant regime

111 citations · 766 across the 23 of their papers we have counts for

collaborators

23 papers

hep-ph2020

Accounting for the Heisenberg and Pauli principles in the kinetic approach to neutrino oscillations

A. Kartavtsev

While oscillations of solar neutrinos are usually studied using the single-particle quantum-mechanical approach, flavor conversions of supernovae neutrinos are typically analyzed u…

hep-ph2016★ 28 cited

Helicity oscillations of Dirac and Majorana neutrinos

Alexandra Dobrynina, Alexander Kartavtsev, Georg Raffelt

The helicity of a Dirac neutrino with mass evolves under the influence of a -field because it has a magnetic dipole moment proportional to . Moreover, it was recently sho…

hep-ph2016★ 33 cited

Lepton asymmetry from mixing and oscillations

Alexander Kartavtsev, Peter Millington, Hendrik Vogel

We show how the two physically-distinct sources of CP-asymmetry relevant to scenarios of leptogenesis: (i) resonant mixing and (ii) oscillations between different flavours can be u…

hep-ph2015★ 79 cited

Neutrino propagation in media: Flavor-, helicity-, and pair correlations

A. Kartavtsev, G. Raffelt, H. Vogel

Neutrinos propagating in media (matter and electromagnetic fields) undergo flavor and helicity oscillations, where helicity transitions are instigated both by electromagnetic field…

astro-ph.HE2014★ 12 cited

Photon-photon dispersion of TeV gamma rays and its role for photon-ALP conversion

Alexandra Dobrynina, Alexander Kartavtsev, Georg Raffelt

The propagation of TeV gamma rays can be strongly modified by B-field induced conversion to axionlike particles (ALPs). We show that, at such high energies, photon dispersion is do…

hep-ph2014

Wave functionals of free real and complex scalar fields on a 1+1 dimensional lattice

Alexander Kartavtsev

We obtain wave functionals of free real and complex scalar fields on a 1+1 dimensional lattice by explicitly calculating the path integral for transition from one field configurati…