We explore the potential of twisted light, a structured beam carrying orbital angular
momentum, as a tool to unveil many-body effects in parabolically confined systems …

The far-infrared response of electron systems confined in a parabolic potential is
investigated experimentally. We present recent studies on cyclotron resonance …

Low-temperature capacitance-voltage measurements in an electron system realized in a
remotely doped, wide AlGaAs parabolic quantum well show small (∼ 1%) capacitance steps …

We study the far-infrared optical-absorption spectrum and collective excitations of electrons
confined in an imperfect parabolic quantum well in a magnetic field tilted with respect to the …

Using a time-dependent Hartree-Fock approximation we have investigated the inter-Landau-
level collective excitation spectrum of quasi-one-dimensional electron gases where Kohn's …

Resonant microwave absorption of a two-dimensional electron system in an AlGaAs/GaAs
heterostructure excited by a near-field technique was investigated. Along with collective …

Inelastic light scattering on a weakly density-modulated 2D electron system accesses the
large wavevectors needed to probe electron interactions in quantum Hall states. For v= 1 …

The carrier distributions in modulation‐doped wide graded quantum wells that a
measurement of the capacitance C between a surface gate and an ohmic contact to the …

We report low-temperature far-infrared magneto-optical measurements on a remotely
doped, asymmetric, wide parabolic Al x Ga 1− x As quantum well with two curvatures. The …

We use self-consistent solutions to Schrödinger's and Poisson's equations to calculate
several observable characteristics of wide parabolic quantum wells in a perpendicular …