35 citations · 71 across the 9 of their papers we have counts for
9 papers
Coherent exciton spin dynamics and three-dimensional quantum state tomography in a single InAlAs quantum dot
J. Njala, Y. Yamamoto, R. Kaji +2
We investigate the coherent exciton spin dynamics in a single InAlAs/AlGaAs quantum dot using time-resolved quantum state tomography. Under two-LO-phonon quasi-resonant excitation…
Narrowband and high-rate entangled photon-pair generation from a high-Q silicon microring resonator
Shoichiro Yasui, Tomohiro Inaba, Hidetaka Nishi +4
Entangled photon-pair sources are indispensable building blocks of quantum information processing technologies. Among the available approaches, on-chip microresonators are particul…
Third Stable Branch and Tristability of Nuclear Spin Polarization in Single Quantum Dot System
Sota Yamamoto, Reina Kaji, Hirotaka Sasakura +1
Semiconductor quantum dots provide a spin-coupled system of an electron and nuclei via enhanced hyperfine interaction. We showed that the nuclear spin polarization in single quantu…
Sign identification of electron and hole out-of-plane g factors by utilizing nuclear spin switch in single quantum nanostructures
R. Matsusaki, R. Kaji, S. Yamamoto +1
The electron and hole g factors are the key quantities for the spin manipulations in semiconductor quantum nanostructures. However, for the individual nanostructures, the separate…
Investigation of in-plane nuclear field formation in single self-assembled quantum dots
S. Yamamoto, R. Matsusaki, R. Kaji +1
We studied the formation mechanism of the in-plane nuclear field in single self-assembled InAlAs/AlGaAs quantum dots. The Hanle curves with an ano…
Dynamic nuclear spin polarization in self-assembled quantum dots under zero magnetic field
Ryosuke Matsusaki, Reina Kaji, Sohta Yamamoto +2
We studied the zero-field dynamic nuclear spin polarization in a single InAlAs/AlGaAs quantum dot. Even without any external magnetic field, the p…