Research Areas - (2) Nonlinear Nanophotonic Quantum Circuits (BTO / LNOI Entangled Photon Pairs)

Full path: Engineering > Photonics / Nanophotonics > Nonlinear Nanophotonic Quantum Circuits (BTO / LNOI Entangled Photon Pairs)

Isabelle Ledoux-Rak 🔗
Ecole Normale Superieure Paris-Saclay 🔗
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Department(s)/lab(s): Physics | LuMIn - Molecular Nonlinear Photonics (Ledoux-Rak) @ ENSPS
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Ledoux-Rak works on molecular and polymer nonlinear optics - second-harmonic generation, electro-optic modulators, and photonic materials/devices - a fundamental-light and nonlinear-photonics program (legacy LPQM at ENS Cachan). In the broader landscape of NV-centre ensemble quantum sensing (DEER, nano-NMR, T1 relaxometry) operating near pT/sqrt(Hz) sensitivity, this work connects via nonlinear-optical materials for photon-pair generation and modulation.

Wenchao Xu 🔗
ETH Zurich 🔗 Paul Scherrer Institut 🔗
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Department(s)/lab(s): Physics – Institute for Quantum Electronics / PSI | Experimental Quantum Engineering Group (Xu) @ ETH Zurich
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Xu leads the Experimental Quantum Engineering group with a joint ETH–PSI appointment. Research directions: (1) Superconducting circuit quantum sensing — using qubits-as-sensors for detecting weak microwave signals beyond standard quantum limits, quantum non-demolition readout of photon fields; (2) Quantum error correction enabled sensing — integrating bosonic codes (cat qubits, binomial codes) into sensing protocols; (3) Quantum acoustics — coupling superconducting qubits to surface acoustic wave (SAW) resonators for hybrid quantum sensing; (4) Novel quantum hardware at PSI — leveraging PSI's infrastructure for cryogenic device fabrication and testing. Connected to the ETH–PSI Quantum Computing Hub.