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View article: Optically sampled superconducting-nanostrip photon-number resolving detector for non-classical quantum state generation
Optically sampled superconducting-nanostrip photon-number resolving detector for non-classical quantum state generation Open
Photon-number-resolving detectors (PNRDs) are the ultimate optical sensors. Superconducting-nanostrip photon detectors (SNSPDs), traditionally known as ON-OFF detectors, have recently been found to have photon number resolving capability w…
View article: High-Rate Four Photon Subtraction from Squeezed Vacuum: Preparing Cat State for Optical Quantum Computation
High-Rate Four Photon Subtraction from Squeezed Vacuum: Preparing Cat State for Optical Quantum Computation Open
Generating logical qubits, essential for error detection and correction in quantum computation, remains a critical challenge in continuous-variable (CV) optical quantum information processing. The Gottesman-Kitaev-Preskill (GKP) code is a …
View article: Erasing Photon-Number Correlations through Hong-Ou-Mandel Interference
Erasing Photon-Number Correlations through Hong-Ou-Mandel Interference Open
A parametric down-conversion source interfering on a beam splitter can be described as both a source of entangled N00N-states or a source of independent, and thus uncorrelated squeezers. The disparity between these outcomes can be attribut…
View article: Generation of multi-photon Fock states at telecommunication wavelength using picosecond pulsed light
Generation of multi-photon Fock states at telecommunication wavelength using picosecond pulsed light Open
Multi-photon Fock states have diverse applications such as optical quantum information processing. For the implementation of quantum information processing, Fock states should be generated within the telecommunication wavelength band, part…
View article: Optically-Sampled Superconducting-Nanostrip Photon-Number Resolving Detector for Non-Classical Quantum State Generation
Optically-Sampled Superconducting-Nanostrip Photon-Number Resolving Detector for Non-Classical Quantum State Generation Open
Photon number-resolving detectors (PNRDs) are the ultimate optical sensors. Superconducting-nanostrip photon detectors (SNSPDs), traditionally known as ON-OFF detectors, have recently been found to have photon number resolving capability w…
View article: Generation of multi-photon Fock states at telecommunication wavelength using picosecond pulsed light
Generation of multi-photon Fock states at telecommunication wavelength using picosecond pulsed light Open
Multi-photon Fock states have diverse applications such as optical quantum information processing. For the implementation of quantum information processing, it is desirable that Fock states be generated within the telecommunication wavelen…
View article: 24-hour measurement of squeezed light using automated stable fiber system
24-hour measurement of squeezed light using automated stable fiber system Open
In order to provide a cloud service of optical quantum computing, it is inevitable to stabilize the optical system for many hours. It is advantageous to construct a fiber-based system, which does not require spatial alignment. However, fib…
View article: Low-loss polarization control in fiber systems for quantum computation
Low-loss polarization control in fiber systems for quantum computation Open
Optical quantum information processing requires low loss interference of quantum light. Also, when the interferometer is composed of optical fibers, degradation of interference visibility due to the finite polarization extinction ratio bec…
View article: Low-loss polarization control in fiber systems for quantum computation
Low-loss polarization control in fiber systems for quantum computation Open
Optical quantum information processing exploits interference of quantum light. However, when the interferometer is composed of optical fibers, degradation of interference visibility due to the finite polarization extinction ratio becomes a…
View article: Generation of highly pure single-photon state at telecommunication wavelength
Generation of highly pure single-photon state at telecommunication wavelength Open
Telecommunication wavelength with well-developed optical communication technologies and low losses in the waveguide are advantageous for quantum applications. However, an experimental generation of non-classical states called non-Gaussian …