[Th-P1-F] Multiple Qubit Control

3:15 PM - 3:30 PM JST(6:15 AM - 6:30 AM UTC)

[Th-P1-F-05] QD Spin-Mediated Tailoring of the Photon-Number Coherence of Vacuum—One-Photon Qubits

〇Etienne Bargel¹, Adrià Medeiros¹, Ilse Maillette de Buy Wenniger², Stephen Wein³, Olivier Krebs¹, Maria Maffei⁴, Alexia Auffèves⁵, Dario Fioretto^1,3, Loïc Lanco^1,6, Petr Steindl¹, Pascale Senellart¹ (1. Univ. Paris-Saclay, C2N, CNRS (France), 2. Department of Physics, Imperial College London (UK), 3. Quandela SAS (France), 4. Dipartimento di Fisica, Univ. di Bari (Italy), 5. MajuLab, CNRS-UCA-SU-NUS-NTU Int'l Joint Res. Lab. (Singapore), 6. Univ. Paris Cité, C2N (France))

Coherent control of charged exciton QDs enables deterministic emission of vacuum–one-photon qubits with spin-tunable photon-number coherence, without affecting emission rates. Self-homodyne measurements demonstrate full coherence control, highlighting semiconductor QDs light engineering properties for advanced information processing.