86 citations · 286 across the 24 of their papers we have counts for
20 papers · 1 filter
Magnetoplasmons and SU(4) symmetry in graphene
Andrea M. Fischer, Rudolf A. Roemer, Alexander B. Dzyubenko
We study magnetoplasmons or neutral collective excitations of graphene in a strong perpendicular magnetic field, which can be modelled as bound electron-hole pairs. The SU(4) symme…
Symmetry Content and Observation of Charged Collective Excitations for Graphene in Strong Magnetic Fields
Andrea M. Fischer, Rudolf A. Römer, Alexander B. Dzyubenko
We show that graphene in a strong magnetic field with partially filled Landau levels sustains charged collective excitations, which are bound states of three-particle complexes. So…
Localised Magneto-Optical Collective Excitations of Impure Graphene
A. M. Fischer, A. B. Dzyubenko, R. A. Roemer
We study optically-induced collective excitations of graphene in the presence of a strong perpendicular magnetic field and a single impurity. We determine the energies and absorpti…
Localized Collective Excitations in Doped Graphene in Strong Magnetic Fields
A. M. Fischer, A. B. Dzyubenko, R. A. Roemer
We consider collective excitations in graphene with filled Landau levels (LL's) in the presence of an external potential due to a single charged donor D+ or acceptor A- impurity. W…
Interacting like charges in Landau levels: Planar geometry, symmetries, and effective quasiparticles
A. B. Dzyubenko, A. R. Todd
We consider a system of two interacting particles with like but unequal charges in a magnetic field in the planar geometry. We construct a complete basis of states compatible with…
Many-body effects in Landau levels: Non-commutative geometry and squeezed correlated states
Alexander B. Dzyubenko
We discuss symmetry-driven squeezing and coherent states of few-particle systems in magnetic fields. An operator approach using canonical transformations and the SU(1,1) algebras i…