216 citations · 1.3k across the 37 of their papers we have counts for
37 papers
Yet another lesson on the stability conditions in multi-Higgs potentials
Igor P. Ivanov, Francisco Vazão
We discuss a rather common but often unnoticed pitfall which arises when deriving the bounded-from-below (BFB) conditions in multi-Higgs models with softly broken global symmetries…
Twisted particle collisions: a new tool for spin physics
Igor P. Ivanov, Nikolai Korchagin, Alexandr Pimikov +1
Collisions of twisted particles --- that is, non-plane-wave states of photons, electrons, or any other particle, equipped with a non-zero orbital angular momentum (OAM) with respec…
Doing spin physics with unpolarized particles
Igor P. Ivanov, Nikolai Korchagin, Alexandr Pimikov +1
Twisted, or vortex, particles refer to freely propagating non-plane-wave states with helicoidal wave fronts. In this state, the particle possesses a non-zero orbital angular moment…
Discriminating between and family transformations in the bilinear space of NHDM
Igor P. Ivanov, Celso C. Nishi
The scalar potential of the N-Higgs-doublet model (NHDM) is best analyzed not in the space of N complex doublets but in the -dimensional space of real-valued bilinears c…
Fate of the Landau-Yang theorem for twisted photons
Igor P. Ivanov, Valery G. Serbo, Pengming Zhang
Landau-Yang theorem is sometimes formulated as a selection rule forbidding two real (that is, non-virtual) photons with zero total momentum to be in the state of the total angular…
Dark matter from CP symmetry of order 4: evolution in the asymmetric regime
Igor P. Ivanov, Maxim Laletin
Multi-Higgs models equipped with global symmetries produce scalar dark matter (DM) candidates stabilized by the unbroken symmetry. It is remarkable that a conserved CP symmetry can…