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Akihisa Tomita
Researcher at Hokkaido University
Publications - 59
Citations - 733
Akihisa Tomita is an academic researcher from Hokkaido University. The author has contributed to research in topics: Holography & Phase conjugation. The author has an hindex of 11, co-authored 59 publications receiving 554 citations. Previous affiliations of Akihisa Tomita include NEC.
Papers
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High-Threshold Fault-Tolerant Quantum Computation with Analog Quantum Error Correction
TL;DR: In this paper, the authors proposed a way to reduce the requirements of the Gottesman-Kitaev-Preskill qubit to be achievable in near-term setups.
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Single-photon interference over 150 km transmission using silica-based integrated-optic interferometers for quantum cryptography
TL;DR: In this paper, the authors demonstrated single-photon interference over 150 km using time-division interferometers for quantum cryptography, which were composed of two integrated-optic asymmetric Mach-Zehnder interferers, and balanced gated-mode photon detectors.
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Analog Quantum Error Correction with Encoding a Qubit into an Oscillator.
TL;DR: This approach is the first attempt to draw both digital and analog information to improve quantum error correction performance and achieve the hashing bound for the quantum capacity of the GQC.
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Quantum key distribution with an efficient countermeasure against correlated intensity fluctuations in optical pulses
Ken Ichiro Yoshino,Mikio Fujiwara,Kensuke Nakata,Tatsuya Sumiya,Toshihiko Sasaki,Masahiro Takeoka,Masahide Sasaki,Akio Tajima,Masato Koashi,Akihisa Tomita +9 more
TL;DR: Yoshino et al. as mentioned in this paper pointed out a security loophole at the transmitter of the GHz-clock QKD, which is a common problem in high-speed QD systems using practical bandwidth limited devices.
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Mode demultiplexer using angularly multiplexed volume holograms
TL;DR: In this study, an experiment is conducted to demonstrate the basic operations for three LP mode groups to confirm the performance of the proposed VHDM and to estimate the signal-to-crosstalk noise ratio (SNR).