Research Areas - (169) Quantum Optics

Full path: Physics > Quantum Optics

Department(s)/lab(s): Physics and Astronomy | Nano-optomechanics and Nanophotonics Group (Ou) @ Southampton
Summary:

Bruce (Jun-Yu) Ou's group applies nanomechanics and nanophotonics to quantum sensor manipulation and AI hardware. Research: (1) ultracompact nanomechanical imaging optics for quantum sensor readout; (2) energy-efficient photonic AI hardware; (3) nanomechanical resonators for force sensing at the quantum limit; (4) nanophotonic interfaces to quantum sensors. Relevant to quantum sensor miniaturisation and readout.

Department(s)/lab(s): Physics / QET Labs | Oulton Group @ Bristol
Summary:

Ruth Oulton's group works on quantum photonics using solid-state single-photon emitters. Research: (1) semiconductor quantum dot single-photon sources β€” cavity-enhanced emission, photonic crystal integration; (2) hBN defect spin-photon interfaces; (3) integrated quantum photonics for sensing and quantum networks. The group focuses on device-quality semiconductor photonic systems for quantum information and sensing applications.

Department(s)/lab(s): Physics / Niels Bohr Institute | Quantum Photonics Group (Lodahl/Paesani) @ UCPH
Summary:

Stefano Paesani works on photonic quantum information processing and quantum sensing. Research: (1) silicon quantum photonic integrated circuits for quantum computing and measurement; (2) boson sampling and quantum advantage with photons; (3) quantum sensing using photonic cluster states. Recently joined Lodahl group at NBI as associate professor.

Department(s)/lab(s): Physics – Laboratoire Kastler Brossel, Sorbonne UniversitΓ© | Multimode Quantum Optics Group – Parigi sub-team (LKB) @ Sorbonne
Summary:

Parigi co-leads the Multimode Quantum Optics group at LKB alongside Treps. Research directions: (1) Multimode squeezed-state quantum networks β€” generating large-scale entangled cluster states using optical frequency combs; reconfigurable graph-state topologies for measurement-based quantum computing and distributed quantum sensing; (2) Multimode quantum sensing β€” using multimode squeezed states for simultaneous beyond-shot-noise estimation of multiple parameters (wavelengths, phases) in a spectrometer; (3) Non-Gaussian quantum states β€” heralded subtraction and addition of photons to Gaussian cluster states for universal CV quantum computation; (4) Quantum networks at telecom β€” generating multimode squeezed states compatible with fiber transmission. ERC Laureate. Employed by Sorbonne UniversitΓ©.

Department(s)/lab(s): Physics (LKB) | Multimode Quantum Optics Team @ ENS Paris
Summary:

Parigi leads work on multimode squeezed-light generation using optical frequency combs, engineering large-scale reconfigurable networks of entangled/squeezed light modes for continuous-variable quantum information and multiparameter quantum metrology, alongside Nicolas Treps.

Department(s)/lab(s): Physics | Quantum Optics and Laser Science Group @ Imperial
Summary:

Patel's research focuses on quantum photonics and quantum information, developing high-performance single-photon and entangled-photon sources and photonic circuits for quantum communication and computing applications.

Department(s)/lab(s): Physics | Pfaff Quantum Circuit Lab @ UIUC
Summary:

Studies quantum optics and quantum information with superconducting and hybrid quantum circuits, focusing on modular quantum computing architectures, microwave-to-optical photon transduction, and quantum error mitigation.

Department(s)/lab(s): School of Electrical Engineering and Telecommunications | Pla Quantum Spin Control and Sensing Laboratory @ UNSW
Summary:

Pla is the strongest single match in this cohort for a candidate whose background is sensitivity-limited spin detection. His laboratory does inductively-detected electron spin resonance at millikelvin using high-quality-factor superconducting microresonators, read out through Josephson and travelling-wave parametric amplifiers operating at the quantum limit of added noise. The result is ESR sensitivity improved by many orders of magnitude over commercial spectrometers β€” the group's stated target is single-spin inductive detection β€” and, in parallel, the development of near-ideal degenerate parametric amplifiers and squeezed microwave states as the readout resource that makes it possible. Applications explicitly include chemistry and biology, where the goal is to do EPR on samples far too small for a conventional spectrometer. Positioned against the established body of NV-ensemble quantum sensing work β€” DEER, nanoscale NMR and T1 relaxometry protocols operating at pT/sqrt(Hz) field sensitivity β€” this is the microwave-inductive route to the same destination: where an NV ensemble reaches pT/sqrt(Hz) by optical readout of many spins, Pla reaches comparable or better spin sensitivity by making the microwave detection chain quantum-limited, and the DEER and dynamical-decoupling sequences are shared verbatim. Preferred attribute present in the strongest form: cutting-edge sensitivity, not device fabrication, is the object.

Department(s)/lab(s): Physics and Astronomy | Quantum Nanophotonics Group (Politi) @ Southampton
Summary:

Alberto Politi's Quantum nanoPhotonics Lab develops photonic quantum technology platforms for quantum information and sensing. Research: (1) integrated quantum photonic circuits in silicon, glass, and diamond; (2) quantum simulation with integrated photonics; (3) single-photon sources coupled to nanophotonic waveguides (including hBN defect emitters). Part of UK Quantum Technology Hubs.

Department(s)/lab(s): Physics / Niels Bohr Institute | QUANTOP – Quantum Optics Center (Polzik Lab) @ UCPH
Summary:

Eugene Polzik's QUANTOP centre uses hot and ultracold atomic spin ensembles and mechanical membranes to generate squeezed, entangled, and single-photon states for quantum sensing and communication. Key directions include: (1) atomic magnetometry and electromagnetic induction imaging for biomedical applications (MEG/MCG-quality sensors); (2) entanglement between a macroscopic mechanical oscillator and an atomic spin ensemble; (3) quantum memory for light; (4) back-action-evading measurement schemes beyond the SQL; and (5) optical preamplification for MRI. QUANTOP heads the Copenhagen Center for Biomedical Quantum Sensing (CBQS), targeting quantum-enhanced disease diagnostics.