Coherently driven semiconductor quantum dot at a telecommunication wavelength.
We proposed and demonstrate use of optical driving pulses at a telecommunication wavelength for exciton-based quantum gate operation. The exciton in a self-assembled quantum dot is coherently manipulated at 1.3 microm through Rabi oscillation. The telecom-band exciton-qubit system incorporates standard optical fibers and fiber optic devices. The coherent manipulation of the two-level system compatible with flexible and stable fiber network paves the way toward practical optical implementation of quantum information processing devices.
Takagi
Hiroyuki
H
Institute for Nano Quantum Information Electronics, and Institute of Industrial Science, University of Tokyo, Tokyo, Japan.
Nakaoka
Toshihiro
T
Watanabe
Katsuyuki
K
Kumagai
Naoto
N
Arakawa
Yasuhiko
Y
D004867:Equipment Design; D019544:Equipment Failure Analysis; D045663:Quantum Dots; D012666:Semiconductors; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*