556 citations · 1.6k across the 31 of their papers we have counts for
31 papers
DiffInfinite: Large Mask-Image Synthesis via Parallel Random Patch Diffusion in Histopathology
Marco Aversa, Gabriel Nobis, Miriam Hägele +10
We present DiffInfinite, a hierarchical diffusion model that generates arbitrarily large histological images while preserving long-range correlation structural information. Our app…
Data Models for Dataset Drift Controls in Machine Learning With Optical Images
Luis Oala, Marco Aversa, Gabriel Nobis +10
Camera images are ubiquitous in machine learning research. They also play a central role in the delivery of important services spanning medicine and environmental surveying. Howeve…
Quantifying the effect of image compression on supervised learning applications in optical microscopy
Enrico Pomarico, Cédric Schmidt, Florian Chays +11
The impressive growth of data throughput in optical microscopy has triggered a widespread use of supervised learning (SL) models running on compressed image datasets for efficient…
Perfectly secure steganography: hiding information in the quantum noise of a photograph
Bruno Sanguinetti, Anthony Martin, Giulia Traverso +2
We show that the quantum nature of light can be used to hide a secret message within a photograph. Using this physical principle we achieve information-theoretic secure steganograp…
Quantum random number generation for 1.25 GHz quantum key distribution systems
A. Martin, B. Sanguinetti, C. C. W. Lim +2
Security proofs of quantum key distribution (QKD) systems usually assume that the users have access to source of perfect randomness. State-of-the-art QKD systems run at frequencies…
Provably Secure and Practical Quantum Key Distribution over 307 km of Optical Fibre
Boris Korzh, Charles Ci Wen Lim, Raphael Houlmann +6
Proposed in 1984, quantum key distribution (QKD) allows two users to exchange provably secure keys via a potentially insecure quantum channel. Since then, QKD has attracted much at…
Quantum random number generation on a mobile phone
Bruno Sanguinetti, Anthony Martin, Hugo Zbinden +1
Quantum random number generators (QRNGs) can significantly improve the security of cryptographic protocols, by ensuring that generated keys cannot be predicted. However, the cost,…
Absolute calibration of fiber-coupled single-photon detector
Tommaso Lunghi, Boris Korzh, Bruno Sanguinetti +1
We show a setup for characterising the efficiency of a single-photon-detector absolutely and with a precision better of 1%. Since the setup does not rely on calibrated devices and…
Pulsed source of spectrally uncorrelated and indistinguishable photons at telecom wavelengths
Natalia Bruno, Anthony Martin, Thiago Guerreiro +2
We report on the generation of indistinguishable photon pairs at telecom wavelengths based on a type-II parametric down conversion process in a periodically poled potassium titanyl…
Nonlinear interaction between two heralded single photons
T. Guerreiro, A. Martin, B. Sanguinetti +7
Harnessing nonlinearities strong enough to allow two single photons to interact with one another is not only a fascinating challenge but is central to numerous advanced application…
Narrowband Photon Pair Source for Quantum Networks
F. Monteiro, A. Martin, B. Sanguinetti +2
We demonstrate a compact photon pair source based on a periodically poled lithium niobate nonlinear crystal in a cavity. The cavity parameters are chosen such that the emitted phot…
Intrinsically stable light source at telecom wavelengths
Fernando Monteiro, Thiago Guerreiro, Bruno Sanguinetti +1
We present a highly stable light source at telecom wavelengths, based on a short erbium doped fiber. The high stability arises from the high inversion of the Er3+ion population. Th…
High efficiency coupling of photon pairs in practice
T. Guerreiro, A. Martin, B. Sanguinetti +3
Multi-photon and quantum communication experiments such as loophole-free Bell tests and device independent quantum key distribution require entangled photon sources which display h…
Measuring absolute spectral radiance using an Erbium Doped Fibre Amplifier
Bruno Sanguinetti, Thiago Guerreiro, Fernando Monteiro +2
We describe a method to measure the spectral radiance of a source in an absolute way without the need of a reference. Here we give the necessary detail to allow for the device to b…
Advantages of gated silicon single photon detectors
T. Lunghi, E. Pomarico, C. Barreiro +3
We present a gated silicon single photon detector based on a commercially available avalanche photodiode. Our detector achieves a photon detection efficiency of 45\pm5% at 808 nm w…
Retinal and post-retinal contributions to the quantum efficiency of the human eye
Gibran Manasseh, Chloe de Balthasar, Bruno Sanguinetti +4
The retina is one of the best known quantum detectors with rods able to respond to a single photon. However, estimates on the number of photons eliciting conscious perception, base…
MHz rate and efficient synchronous heralding of single photons at telecom wavelengths
Enrico Pomarico, Bruno Sanguinetti, Thiago Guerreiro +2
We report on the realization of a synchronous source of heralded single photons at telecom wavelengths with MHz heralding rates and high heralding efficiency. This source is based…
Single-photon space-like antibunching
Thiago Guerreiro, Bruno Sanguinetti, Hugo Zbinden +2
We use heralded single photons to perform an antibunching experiment in which the clicks at the detectors are spacelike separated events. The idea of such experiment dates back to…
Engineering integrated pure narrow-band photon sources
Enrico Pomarico, Bruno Sanguinetti, Clara I. Osorio +2
Engineering and controlling well defined states of light for quantum information applications is of increasing importance as the complexity of quantum systems grows. For example, i…
Experimental amplification of an entangled photon: what if the detection loophole is ignored?
Enrico Pomarico, Bruno Sanguinetti, Pavel Sekatski +2
The experimental verification of quantum features, such as entanglement, at large scales is extremely challenging because of environment-induced decoherence. Indeed, measurement te…
Various quantum nonlocality tests with a simple 2-photon entanglement source
Enrico Pomarico, Jean-Daniel Bancal, Bruno Sanguinetti +2
Nonlocality is a fascinating and counterintuitive aspect of Nature, revealed by the violation of a Bell inequality. The standard and easiest configuration in which Bell inequalitie…
Faithful entanglement swapping based on sum-frequency generation
Nicolas Sangouard, Bruno Sanguinetti, Noe Curtz +3
We show that the entanglement resulting from an entanglement swapping operation performed with spontaneous parametric down-conversion can be made faithful without post-selection us…
32 Bin Near-Infrared Time-Multiplexing Detector with Attojoule Single-Shot Energy Resolution
Patrick Eraerds, Jun Zhang, Enrico Pomarico +3
We present two implementations of photon counting time-multiplexing detectors for near-infrared wavelengths, based on Peltier cooled InGaAs/InP avalanche photo diodes (APDs). A fir…
Cloning Entangled Qubits to Scales One Can See
Pavel Sekatski, Bruno Sanguinetti, Enrico Pomarico +2
By amplifying photonic qubits it is possible to produce states that contain enough photons to be seen with a human eye, potentially bringing quantum effects to macroscopic scales […