71 citations · 217 across the 10 of their papers we have counts for
10 papers
Direct observation of the transverse near field of an edge excitation in a fractional quantum Hall state
Yunhyeon Jeong, Akinori Kamiyama, John N. Moore +6
Stroboscopic time-resolved photoluminescence (PL) microscopy and spectroscopy reveal that an electrically launched edge excitation in a fractional quantum Hall (FQH) state…
Spatiotemporal imaging of gate-controlled multipath dynamics of fractional quantum Hall edge excitations
Yunhyeon Jeong, Akinori Kamiyama, John N. Moore +6
Quantum Hall edge excitations, whose low-energy behavior admits a chiral conformal-field-theory description, are a promising platform for engineered dynamical experiments, includin…
Electrically induced bulk and edge excitations in the fractional quantum Hall regime
Quentin France, Yunhyeon Jeong, Akinori Kamiyama +4
We apply a voltage pulse to electrically excite the incompressible region of a two-dimensional electron liquid in the fractional quantum Hall state and investigate the coll…
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…
Gate-Control of Anisotropic Spin Transport and Spin Helix Dynamics in a Modulation-Doped GaAs Quantum Well
S. Anghel, F. Passmann, A. Singh +10
Electron spin transport and dynamics are investigated in a single, high-mobility, modulation-doped, GaAs quantum well using ultrafast two-color Kerr-rotation micro-spectroscopy, su…
Nonlocal biphoton generation in Werner state from a single semiconductor quantum dot
H. Kumano, H. Nakajima, T. Kuroda +3
We demonstrate Werner-like polarization-entangled state generation disapproving local hidden variable theory from a single semiconductor quantum dot. By exploiting tomographic anal…
Nuclear magnetization in gallium arsenide quantum dots at zero magnetic field
G. Sallen, S. Kunz, T. Amand +8
Optical and electrical control of the nuclear spin system allows enhancing the sensitivity of NMR applications and spin-based information storage and processing. Dynamic nuclear po…
Magnetic field induced valence band mixing in [111] grown semiconductor quantum dots
M. V. Durnev, M. M. Glazov, E. L. Ivchenko +11
We present a microscopic theory of the magnetic field induced mixing of heavy-hole states +/- 3/2 in GaAs droplet dots grown on (111)A substrates. The proposed theoretical model ta…
Dark-bright mixing of interband transitions in symmetric semiconductor quantum dots
G. Sallen, B. Urbaszek, M. M. Glazov +10
In photoluminescence spectra of symmetric [111] grown GaAs/AlGaAs quantum dots in longitudinal magnetic fields applied along the growth axis we observe in addition to the expected…
Impact of heavy hole-light hole coupling on optical selection rules in GaAs quantum dots
Thomas Belhadj, Thierry Amand, Alejandro Kunold +8
We report strong heavy hole-light mixing in GaAs quantum dots grown by droplet epitaxy. Using the neutral and charged exciton emission as a monitor we observe the direct consequenc…