activity
20242026
collaborators

13 papers

quant-ph2026

Picosecond Schrödinger cat states for ultrafast optical quantum processing

Mamoru Endo, Kan Takase, Takefumi Nomura +12

Non-Gaussian states are essential resources for universal, fault-tolerant optical quantum computing, but their generation rate remains limited by low heralding probabilities and op…

quant-ph2026

Broadband High-Level Squeezed Light using Waveguide Optical Parametric Amplifiers with External Dispersion Compensation

Takumi Suzuki, Shotaro Oki, Kazuki Hirota +8

We demonstrate broadband phase-sensitive amplification (PSA) measurement of squeezed light generated by a waveguide optical parametric amplifier (OPA) with external dispersion comp…

quant-ph2026

A full-stack analog optical quantum computing platform with one hundred inputs

Shota Yokoyama, Atsushi Sakaguchi, Warit Asavanant +11

Optical technology is a highly promising platform for quantum computing due to its enormous potential for large-scale, ultrafast computation. However, realizing a programmable and…

quant-ph2026

Programmable non-Gaussian quantum light source with state and temporal-waveform tunability

Hiroko Tomoda, Yu Nishizawa, Akihiro Machinaga +7

A versatile quantum light source capable of programmably generating a variety of quantum light is a key enabler for photonic quantum technologies. In particular, independent contro…

quant-ph2026

Hybridization of pulse and continuous-wave based optical quantum computation

Tatsuki Sonoyama, Tomoki Sano, Takumi Suzuki +13

We propose a pulse and continuous wave (CW) hybrid architecture of continuous-variable measurement-based optical quantum computation utilizing the strengths of both pulsed and CW l…

quant-ph2026

Ultrafast all-optical quantum teleportation

Takumi Suzuki, Takaya Hoshi, Akito Kawasaki +13

Light's intrinsic carrier frequency of hundreds of terahertz theoretically enables information processing at terahertz clock rates. In optical quantum computing, continuous-variabl…