Turning a molecule into a coherent two-level quantum system

Abstract

Molecules are ubiquitous in natural phenomena and man-made products, but their use in quantum optical applications has been hampered by incoherent internal vibrations and other phononic interactions with their environment. We have now succeeded in turning an organic molecule into a coherent two-level quantum system by placing it in an optical microcavity. This allows several unprecedented observations such as 99\% extinction of a laser beam by a single molecule, saturation with less than 0.5 photon, and nonclassical generation of few-photon super-bunched light. Furthermore, we demonstrate efficient interaction of the molecule-microcavity system with single photons generated by a second molecule in a distant laboratory. Our achievements pave the way for linear and nonlinear quantum photonic circuits based on organic platforms.

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• Diamond Integrated Quantum Photonics: A Review
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• Phonon-induced optical dephasing in single organic molecules
• Weak-to-Strong Light-Matter Coupling and Dissipative Dynamics from First Principles
• Efficient room-temperature molecular single-photon sources for quantum key distribution
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• Coherent coupling of single molecules to on-chip ring resonators
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• Plasmonic Purcell Effect in Organic Molecules
• Cavity-enhanced Raman scattering for in situ alignment and characterization of solid-state microcavities
• Optical read and write of spin states in organic diradicals
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• Enhanced collective Purcell effect of coupled quantum emitter systems
• High quality-factor diamond-confined open microcavity
• Multidimensional Coherent Spectroscopy of Molecular Polaritons: Langevin Approach
• Engineering long-lived vibrational states for an organic molecule
• Widely-tunable, doubly-resonant Raman scattering on diamond in an open microcavity
• Non-Hermitian Anharmonicity Induces Single-Photon Emission
• Integrated Photonic Platforms for Quantum Technology: A Review
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• Photon indistinguishability measurements under pulsed and continuous excitation
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• Theory for the stationary polariton response in the presence of vibrations
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• Observation of microcavity fine structure
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• Realisation of a Coherent and Efficient One-Dimensional Atom
• Open-shell TADF: Quartet-derived luminescence with dark radicals
• Enantio-detection via cavity-assisted three-photon processes
• Fiber-taper collected emission from NV centers in high-$Q/V$ diamond microdisks
• Fabry-Perot microcavity spectra have a fine structure
• Tunable strong coupling of two adjacent optical λ/2 Fabry-Pérot microresonators
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• Photon Antibunching in Single-Molecule Vibrational Sum-Frequency Generation
• Floquet engineering of molecular dynamics via infrared coupling
• Thermal tuning of a fiber-integrated Fabry-Pérot cavity
• Multiple Interacting Photonic Modes in Strongly Coupled Organic Microcavities
• Optical scattering imaging with sub-nanometer precision based on position-ultra-sensitive giant Lamb shift
• Single-Molecule Doped Crystalline Nanosheets for Delicate Photophysics Studies and Directional Single-Photon Emitting Devices
• Dissipative stabilization of maximal entanglement between non-identical emitters via two-photon excitation
• Nanofiber-based high-Q microresonator for cryogenic applications
• Giant Purcell broadening and Lamb shift for DNA-assembled near-infrared quantum emitters
• Parametrized protocol achieving the Heisenberg limit in the optical domain via dispersive atom-light interactions
• Single site-controlled inverted pyramidal InGaAs QD-nanocavity operating at the onset of the strong coupling regime
• Frequency-resolved Purcell effect for the dissipative generation of steady-state entanglement
• Observation of mode-mixing in the eigenmodes of an optical microcavity
• Decoherence dynamics in molecular qubits: Exponential, Gaussian and beyond
• Many-Body Entanglement in Solid-State Emitters
• An integrated whispering-gallery-mode resonator for solid-state coherent quantum photonics
• A scanning planar Yagi-Uda antenna for fluorescence detection
• A Low-Temperature Tunable Microcavity featuring High Passive Stability and Microwave Integration
• Organic molecules as single-photon sources
• Purcell modified Doppler cooling of quantum emitters inside optical cavities
• Convert laser light into single photons via interference
• Optical microcavity characterization via resonance spectra and modes
• Theory of dynamical superradiance in organic materials
• Enhanced phonon lifetimes with optically controlled single molecules