6 papers
Collective decay of interacting bosons
Bennet Windt, Lorenzo Rossi, Alexander V. Poshakinskiy +2
We study a bosonic analog of the paradigmatic Dicke model of superradiance, comprising interacting bosonic modes subject to fully symmetric collective decay. Depending on the inter…
Coherent transport in non-Abelian quantum graphs
A. V. Poshakinskiy, L. E. Golub
We study quantum charge transport in two-dimensional networks in the presence of a magnetic field and spin-orbit interaction. The interplay of the corresponding Abelian and non-Abe…
Trembling motion of electrons driven by Larmor spin precession
I. Stepanov, M. Ersfeld, A. V. Poshakinskiy +4
We show that the initialization of an ensemble of electrons in the same spin state in strained n-InGaAs subject to a perpendicular magnetic field triggers an AC electric current at…
Persistent spin grids with spin-orbit coupled 2D electron gas
A. V. Poshakinskiy
We consider the diffusive spin dynamics of a 2D electron gas with spin-orbit coupling confined within a grid of narrow channels. We show that the lifetime of certain spin distribut…
Enhancing Spin Diffusion in GaAs Quantum Wells: The Role of Electron Density and Channel Width
B. W. Grobecker, A. V. Poshakinskiy, S. Anghel +3
This study explores the relationship between spin diffusion, spin lifetime, electron density and lateral spatial confinement in two-dimensional electron gases hosted in GaAs quantu…
Emergent spin and orbital angular momentum of light in twisted photonic bilayer
Egor S. Vyatkin, Alexander V. Poshakinskiy, Sergey A. Tarasenko
We demonstrate that the optical response of twisted photonic bilayers, photonic counterparts of van der Waals structures, is sensitive to both spin angular momentum (SAM) and orbit…