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

[Tu-P-121] Development of a fiber-based optical system for quantum state transfer from single photon polarization to single hole spin

〇Rio Fukai¹, Hikaru Sugiyama¹, Kotaro Taga¹, Takafumi Fujita¹, Kentarou Sawano², David Guy Austing³, Akira Oiwa¹ (1. The Univ. of Osaka (Japan), 2. Tokyo City Univ. (Japan), 3. National Res. Council of Canada (Canada))

We present a fiber-based optical system integrated with a dilution refrigerator toward quantum state transfer from photon polarization to hole spin. The system enables the illumination of a Ge quantum dot with polarization-controlled telecom-wavelength pulses via precise cryogenic alignment.