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19 papers · 1 filter
Large anisotropy of spin-orbit interaction in a single InAs self-assembled quantum dot
S. Takahashi, R. S. Deacon, K. Yoshida +4
Anisotropy of spin-orbit interaction (SOI) is studied for a single uncapped InAs self-assembled quantum dot (SAQD) holding just a few electrons. The SOI energy is evaluated from an…
Fano-Kondo interplay in a side-coupled double quantum dot
S. Sasaki, H. Tamura, T. Akazaki +1
We investigate low-temperature transport characteristics of a side-coupled double quantum dot where only one of the dots is directly connected to the leads. We observe Fano resonan…
Tunable photon-assisted bleaching of three-level systems for noise filtration
Chun-Hsu Su, Andrew D. Greentree, Raymond G. Beausoleil +4
Electromagnetically-induced transparency (EIT) exploits quantum coherence to burn subnatural linewidth holes within a spectral line. We investigate the less explored properties of…
Single-Electron Tunneling and the Fluctuation Theorem
Y. Utsumi, D. S. Golubev, M. Marthaler +2
Experiments on the direction-resolved full-counting statistics of single-electron tunneling allow testing the fundamentally important Fluctuation Theorem (FT). At the same time, th…
Nonadiabatic Dynamics of Ultracold Fermions in Optical Superlattices
Atsushi Yamamoto, Makoto Yamashita, Norio Kawakami
We study the time-dependent dynamical properties of two-component ultracold fermions in a one-dimensional optical superlattice by applying the adaptive time-dependent density matri…
Spin-polarized electric currents in quantum transport through tubular two-dimensional electron gases
O. Entin-Wohlman, A. Aharony, Y. Tokura +1
Scattering theory is employed to derive a Landauer-type formula for the spin and the charge currents, through a finite region where spin-orbit interactions are effective. It is sho…