Detection of spin polarization with a side coupled quantum dot (2009)
Otsuka, Tomohiro, Abe, Eisuke, Iye, Yasuhiro, Katsumoto, Shingo
We propose realistic methods to detect local spin polarization, which utilize a quantum dot side coupled to the target system. By choosing appropriate states in the dot, we can put spin selectivity...
Michihiro Koibuchi, Konosuke Watanabe, Tomohiro Otsuka, Hideharu Amano
arbitrary topologies, have been used to connect nodes in PC/WS clusters or high-performance storage systems. Although deadlock-free routings, multicasts, and topologies for SANs have been widely...
Excited-state spectroscopy on a quantum dot side-coupled to a quantum wire (2008)
Otsuka, Tomohiro, Abe, Eisuke, Iye, Yasuhiro, Katsumoto, Shingo
We report excited-state spectroscopy on a quantum dot side-coupled to a quantum wire with accurate energy estimation. Our method utilizes periodic voltage pulses on the dot, and the energy...
Fano Effect in a Few-Electron Quantum Dot (2007)
Otsuka, Tomohiro, Abe, Eisuke, Katsumoto, Shingo, Iye, Yasuhiro, Khym, Gyong Luck, Kang, Kicheon
We have studied the Fano effect in a few-electron quantum dot side-coupled to a quantum wire. The conductance of the wire, which shows an ordinal staircase-like quantization without the dot, is...
Aharony, Amnon, Entin-Wohlman, Ora, Otsuka, Tomohiro, Katsumoto, Shingo, Aikawa, Hisashi, Kobayashi, Kensuke
Although the conductance of a closed Aharonov-Bohm interferometer, with a quantum dot on one branch, obeys the Onsager symmetry under magnetic field reversal, it needs not be a periodic function of...