activity
20062023
most citedNew Limits on Coupling of Fundamental Constants to Gravity Using Sr Optical Lattice Clocks

331 citations · 1.3k across the 26 of their papers we have counts for

collaborators

26 papers

quant-ph2023★ 7 cited

Frequency-multiplexed Hong-Ou-Mandel interference

Mayuka Ichihara, Daisuke Yoshida, Feng-Lei Hong +1

The implementation of quantum repeaters needed for long-distance quantum communication requires the generation of quantum entanglement distributed among the elementary links. These…

quant-ph2023★ 10 cited

Frequency-multiplexed storage and distribution of narrowband telecom photon pairs over a 10-km fiber link with long-term system stability

Ko Ito, Takeshi Kondo, Kyoko Mannami +7

The ability to transmit quantum states over long distances is a fundamental requirement of the quantum internet and is reliant upon quantum repeaters. Quantum repeaters involve ent…

quant-ph2022★ 3 cited

Single-shot high-resolution identification of discrete frequency modes of single-photon-level optical pulses

Daisuke Yoshida, Mayuka Ichihara, Takeshi Kondo +2

Frequency-multiplexed quantum communication usually requires a single-shot identification of the frequency mode of a single photon . In this paper, we propose a scheme that can ide…

quant-ph2021★ 13 cited

Coupling of a quantum memory and telecommunication wavelength photons for high-rate entanglement distribution in quantum repeaters

Kyoko Mannami, Takeshi Kondo, Tomoki Tsuno +7

Quantum repeaters are indispensable tools for long-distance quantum communication. However, frequency matching between entangled photon sources and remote quantum memories (QMs) is…

quant-ph2021★ 13 cited

Offset-locking-based frequency stabilization of external cavity diode lasers for long-distance quantum communication

Takuto Miyashita, Takeshi Kondo, Kohei Ikeda +3

Quantum repeaters are required for long-distance quantum communication. For efficient coupling of quantum entangled photon sources with narrow-linewidth quantum memories we perform…

physics.atom-ph2020★ 36 cited

Demonstration of the nearly continuous operation of an Yb optical lattice clock for half a year

Takumi Kobayashi, Daisuke Akamatsu, Kazumoto Hosaka +6

Optical lattice clocks surpass primary Cs microwave clocks in frequency stability and accuracy, and are promising candidates for a redefinition of the second in the International S…