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Dynamical friction in ultralight dark matter: Plummer sphere perspective
V. M. Gorkavenko, A. I. Yakimenko, A. O. Zaporozhchenko +1
In models of dark matter composed of feebly interacting ultralight bosons in the state of Bose-Einstein condensate, the dynamical friction force acting on circularly moving globula…
Vortex Lines in Ultralight Bosonic Dark Matter around Rotating Supermassive Black Holes
K. Korshynska, O. O. Prykhodko, E. V. Gorbar +2
Theoretical analysis of the interaction between superfluid dark matter and rotating supermassive black holes offers a promising framework for probing quantum effects in ultralight…
Dynamical friction in rotating ultralight dark matter galactic cores
V. M. Gorkavenko, O. V. Barabash, T. V. Gorkavenko +5
Dynamical friction and stellar orbital motion in spiral galaxies with dark matter composed of ultralight bosons in the state of rotating Bose-Einstein condensate (BEC) are studied.…
Reduced QED with few planes and fermion gap generation
E. V. Gorbar, V. P. Gusynin, M. R. Parymuda
The formalism of reduced quantum electrodynamics is generalized to the case of heterostructures composed of few atomically thick layers and the corresponding effective (2+1)-dimens…
Viscoelastic response and anisotropic hydrodynamics in Weyl semimetals
A. A. Herasymchuk, E. V. Gorbar, P. O. Sukhachov
We study viscoelastic response in Weyl semimetals with broken time-reversal symmetry. The principal finding is that topology and anisotropy of the Fermi surface are manifested in t…
Electron binding energy of a donor in bilayer graphene with gate-tunable gap
E. V. Gorbar, V. P. Gusynin, D. O. Oriekhov +1
In gapped bilayer graphene, similarly to conventional semiconductors, Coulomb impurities (such as nitrogen donors) may determine the activation energy of its conductivity and provi…