11 citations · 26 across the 4 of their papers we have counts for
10 papers
Fragile versus stable two-dimensional fermionic quasiparticles
Seongjin Ahn, Sankar Das Sarma
We provide a comprehensive theoretical investigation of the Fermi liquid quasiparticle description in two-dimensional electron gas interacting via the long-range Coulomb interactio…
Dips in high-order harmonics spectra from a subcycle-driven two-level system reflected in the negativity structure of the time-frequency Wigner function
Seongjin Ahn, Andrey S. Moskalenko
We investigate high-order harmonics spectra radiated from a two-level model system driven by strong, ultrabroadband half- and single-cycle pulses, which are shorter than the invers…
Screening, Friedel oscillations, RKKY interaction, and Drude transport in anisotropic two-dimensional systems
Seongjin Ahn, S. Das Sarma
We investigate the effect of the mass anisotropy on Friedel Oscillations, Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction, screening properties, and Boltzmann transport in two dim…
Anisotropic Fermionic Quasiparticles
Seongjin Ahn, S. Das Sarma
We have carried out a comprehensive investigation of the quasiparticle properties of a two-dimensional electron gas, interacting via the long-range Coulomb interaction, in the pres…
Theroy of anisotropic plasmons
Seongjin Ahn, S. Das Sarma
We develop the complete theory for the collective plasmon modes of an interacting electron system in the presence of explicit mass (or velocity) anisotropy in the corresponding non…
Microscopic bath effects on noise spectra in semiconductor quantum dot qubits
Seongjin Ahn, S. Das Sarma, J. P. Kestner
When a system is thermally coupled to only a small part of a larger bath, statistical fluctuations of the temperature (more precisely, the internal energy) of this "sub-bath" aroun…