Description: Coherent excitation of single emitters (quantum dots, atomic vapour) to study quantum optical phenomena such as photon antibunching, resonance fluorescence, and non-classical light generation.
Giulia Rubino's research bridges quantum foundations and quantum technologies using integrated photonics. Research: (1) indefinite causal order — experimental demonstration of quantum switch using photonic chips; (2) quantum thermodynamics — fundamental limits of thermodynamic work extraction in quantum systems; (3) quantum information processing with photonic integrated circuits. Appointed Lecturer January 2024.
Scully directs IQSE and pursues foundational quantum optics: quantum coherence effects (lasing without inversion, electromagnetically induced transparency), collective/superradiant emission, quantum-enhanced spectroscopy, and coherent-Raman schemes (FAST CARS) for real-time detection of pathogens and molecular fingerprints. In the broader landscape of NV-centre ensemble quantum sensing (DEER, nano-NMR, T1 relaxometry) operating near pT/sqrt(Hz) sensitivity, this work sits on the fundamental-light side, providing coherence and superradiance concepts that inform quantum-enhanced magnetometry read-out.
Pascale Senellart's group at C2N develops the world's most efficient and bright quantum dot single-photon sources. Research: (1) high-efficiency single-photon emitters based on semiconductor quantum dots in micropillar cavities — up to 99% efficiency, >98% photon purity; (2) entangled photon pair sources; (3) photonic integrated circuits for quantum information and sensing. Coordinator of Quantum-Saclay ecosystem; co-founder of Quandela (quantum photonics spinoff). Key for quantum sensing with non-classical light.
Sokolov develops femtosecond adaptive spectroscopic techniques for coherent Raman (FAST CARS), broadband stochastic laser fields, and quantum-light probes of molecular coherence for standoff chemical/biological sensing and label-free imaging. In the broader landscape of NV-centre ensemble quantum sensing (DEER, nano-NMR, T1 relaxometry) operating near pT/sqrt(Hz) sensitivity, this work contributes ultrafast coherent-Raman methodology adjacent to spin-based sensing.
Works on quantum optics and precision atomic physics, including superradiant lasing for next-generation atomic clocks and fundamental studies of light-atom interaction.
Andrew Young's group develops solid-state quantum photonic systems, focusing on deterministic single photon emitters and spin-photon interfaces. Research: (1) quantum dot and colour-centre emitters coupled to cavities and waveguides for near-unity efficiency; (2) spin-photon interfaces for quantum repeaters; (3) cavity quantum electrodynamics for quantum networking. Part of Quantum Communications Hub.