Publications by authors named "Mikihisa Matsuyama"
Superconducting nanostrip photon detectors have been used as single-photon detectors, which can discriminate only photons' presence or absence. It has recently been found that they can discriminate the number of photons by analyzing the output signal waveform, and they are expected to be used in various fields, especially in optical-quantum-information processing. Here, we improve the photon-number-resolving performance for light with a high-average photon number by pattern matching of the output signal waveform.
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- Optical quantum computation needs carefully created multimode photonic quantum states to function effectively.
- The study shows the successful phase locking of two all-optical quantum memories, which allows for the precise timing of releasing two-mode entangled single-photon states.
- The released states maintain their entanglement and nonclassical properties even with release-time differences of up to 400 nanoseconds, validated through advanced measurement techniques.