[Tu-P] Quantum technologies: semiconductor qubits and applications, cryo-CMOS technologies

[Tu-P-122] Fabrication of Gate-defined Quantum Dot in a Bull’s Eye Optical Cavity Towards Photon-Spin Conversion

〇Hosumi Sato¹, Sangmin Ji², Rio Fukai¹, Takafumi Fujita^1,3, Satoshi Iwamoto⁴, Haruki Kiyama⁵, Arne Ludwig⁶, Andreas Dirk Wieck⁶, Akira Oiwa^1,3 (1. SANKEN, The Univ. of Osaka (Japan), 2. Hiroshima Univ. (Japan), 3. QIQB, The Univ. of Osaka (Japan), 4. The Univ. of Tokyo (Japan), 5. Kyusyu Univ. (Japan), 6. Ruhr Univ. Bochum (Germany))

Increasing Photon-Spin conversion efficiency in a spin qubit based on gate-defined quantum dot is important for realization of quantum repeater. By fabricating the hybrid device of Bull’s eye optical cavity and gate-defined quantum dot is one of the candidates for achieving it.