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Experimental entanglement swapping through single-photon nonlinearity
Yoshiaki Tsujimoto, Kentaro Wakui, Tadashi Kishimoto +5
In photonic quantum information processing, quantum operations using nonlinear photon-photon interactions are vital for implementing two-qubit gates and enabling faithful entanglem…
1xN DWDM channel selective quantum frequency conversion
Tomoaki Arizono, Toshiki Kobayashi, Shigehito Miki +5
Dense Wavelength Division Multiplexing (DWDM) is a key technology for realizing high-capacity and flexible quantum communication networks. In addition, to realize the emerging quan…
Low-noise quantum frequency conversion with cavity enhancement of converted mode
Shoichi Murakami, Toshiki Kobayashi, Shigehito Miki +7
Quantum frequency conversion (QFC) which converts the frequencies of photons while preserving the quantum state is an essential technology for realizing the quantum internet and qu…
Generation of multi-photon Fock states at telecommunication wavelength using picosecond pulsed light
Tatsuki Sonoyama, Kazuma Takahashi, Tomoki Sano +9
Multi-photon Fock states have diverse applications such as optical quantum information processing. For the implementation of quantum information processing, it is desirable that Fo…
Optically-Sampled Superconducting-Nanostrip Photon-Number Resolving Detector for Non-Classical Quantum State Generation
Mamoru Endo, Kazuma Takahashi, Takefumi Nomura +11
Photon number-resolving detectors (PNRDs) are the ultimate optical sensors. Superconducting-nanostrip photon detectors (SNSPDs), traditionally known as ON-OFF detectors, have recen…
Boosting the generation rate of squeezed single-photon states by generalized photon subtraction
Hiroko Tomoda, Akihiro Machinaga, Kan Takase +9
In optical quantum information processing with continuous variables, optical non-Gaussian quantum states are essential for universal and fault-tolerant quantum computation. Experim…