133 citations · 1.5k across the 54 of their papers we have counts for
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Finite temperature spin diffusion in the Hubbard model in the strong coupling limit
Oleksandr Gamayun, Arthur Hutsalyuk, Balázs Pozsgay +1
We investigate finite temperature spin transport in one spatial dimension by considering the spin-spin correlation function of the Hubbard model in the limiting case of infinitely…
Magnetic field driven instability of charged center in graphene
O. V. Gamayun, E. V. Gorbar, V. P. Gusynin
It is shown that a magnetic field dramatically affects the problem of supercritical charge in graphene making any charge in gapless theory supercritical. The cases of radially symm…
Dynamical screening in bilayer graphene
O. V. Gamayun
We calculate 1-loop polarization in bilayer graphene in the 4-band approximation for arbitrary values of frequency, momentum and doping. At low and high energy our result reduces t…
Gap generation and semimetal-insulator phase transition in graphene
O. V. Gamayun, E. V. Gorbar, V. P. Gusynin
The gap generation is studied in suspended clean graphene in the continuum model for quasiparticles with the Coulomb interaction. We solve the gap equation with the dynamical polar…